diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/task/service/InspectionSqlReportTask.java b/backend-java/src/main/java/com/nanri/aiimage/modules/task/service/InspectionSqlReportTask.java
new file mode 100644
index 00000000..ab6cc974
--- /dev/null
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/task/service/InspectionSqlReportTask.java
@@ -0,0 +1,108 @@
+package com.nanri.aiimage.modules.task.service;
+
+import com.nanri.aiimage.common.service.DistributedJobLockService;
+import com.nanri.aiimage.config.InspectionProperties;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+
+import java.nio.charset.StandardCharsets;
+import java.time.Duration;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 巡检只读 SQL 报表任务（task-200）。
+ *
+ * 与 InspectionScheduler 同开关/调度风格：aiimage.inspection.enabled 默认 false；启用后按
+ * aiimage.inspection.cron 执行 6 张只读报表 SQL（resources/inspection/*.sql，task-194..199），
+ * 逐条输出行数与耗时；单条失败记录日志不阻断其余；分布式锁防双实例重复；只 query 不改数据。
+ */
+@Slf4j
+@Service
+public class InspectionSqlReportTask {
+
+    private static final Duration REPORT_LOCK_TTL = Duration.ofMinutes(10);
+
+    /** 与巡检 SQL 文件一一对应（顺序执行）。 */
+    static final List<String> REPORT_FILES = List.of(
+            "01_orphan_job.sql", "02_orphan_result.sql", "03_task_missing_result.sql",
+            "04_result_missing_file.sql", "05_terminal_task_active_job.sql",
+            "06_over_retention_active_job.sql");
+
+    private final InspectionProperties inspectionProperties;
+    private final DistributedJobLockService distributedJobLockService;
+    private final ObjectProvider<JdbcTemplate> jdbcTemplateProvider;
+
+    /** 测试/无锁构造。 */
+    public InspectionSqlReportTask(InspectionProperties inspectionProperties,
+                                   ObjectProvider<JdbcTemplate> jdbcTemplateProvider) {
+        this(inspectionProperties, null, jdbcTemplateProvider);
+    }
+
+    @Autowired
+    public InspectionSqlReportTask(InspectionProperties inspectionProperties,
+                                   DistributedJobLockService distributedJobLockService,
+                                   ObjectProvider<JdbcTemplate> jdbcTemplateProvider) {
+        this.inspectionProperties = inspectionProperties;
+        this.distributedJobLockService = distributedJobLockService;
+        this.jdbcTemplateProvider = jdbcTemplateProvider;
+    }
+
+    @Scheduled(cron = "${aiimage.inspection.cron:0 0 3 * * *}")
+    public void runIfEnabled() {
+        if (!inspectionProperties.isEnabled()) {
+            return;
+        }
+        if (distributedJobLockService == null) {
+            return;
+        }
+        DistributedJobLockService.LockHandle lockHandle =
+                distributedJobLockService.tryLock("inspection-sql-report", REPORT_LOCK_TTL);
+        if (lockHandle == null) {
+            log.info("[inspection-sql] skip because another instance holds the report lock");
+            return;
+        }
+        try (lockHandle) {
+            runAll();
+        }
+    }
+
+    /** 执行全部只读报表 SQL；返回成功执行的报表数（disabled/无 JDBC 返回 0，失败单条不阻断）。 */
+    public int runAll() {
+        if (!inspectionProperties.isEnabled()) {
+            return 0;
+        }
+        JdbcTemplate jdbcTemplate = jdbcTemplateProvider.getIfAvailable();
+        if (jdbcTemplate == null) {
+            log.warn("[inspection-sql] enabled but no JdbcTemplate bean, skip reports");
+            return 0;
+        }
+        int ok = 0;
+        for (String file : REPORT_FILES) {
+            long startedAt = System.nanoTime();
+            try {
+                String sql = loadSql(file);
+                List<Map<String, Object>> rows = jdbcTemplate.queryForList(sql);
+                long elapsedMs = (System.nanoTime() - startedAt) / 1_000_000;
+                log.info("[inspection-sql] report {} rows={} elapsedMs={}",
+                        file, rows.size(), elapsedMs);
+                ok++;
+            } catch (Exception ex) {
+                long elapsedMs = (System.nanoTime() - startedAt) / 1_000_000;
+                log.error("[inspection-sql] report {} failed elapsedMs={} cause={}",
+                        file, elapsedMs, ex.toString());
+            }
+        }
+        return ok;
+    }
+
+    private String loadSql(String file) throws java.io.IOException {
+        ClassPathResource resource = new ClassPathResource("inspection/" + file);
+        return new String(resource.getInputStream().readAllBytes(), StandardCharsets.UTF_8);
+    }
+}
diff --git a/backend-java/src/test/java/com/nanri/aiimage/modules/task/service/InspectionSqlReportTaskTest.java b/backend-java/src/test/java/com/nanri/aiimage/modules/task/service/InspectionSqlReportTaskTest.java
new file mode 100644
index 00000000..e0d06dea
--- /dev/null
+++ b/backend-java/src/test/java/com/nanri/aiimage/modules/task/service/InspectionSqlReportTaskTest.java
@@ -0,0 +1,181 @@
+package com.nanri.aiimage.modules.task.service;
+
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.read.ListAppender;
+import com.nanri.aiimage.config.InspectionProperties;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * task-200：巡检报表任务契约。
+ * 默认 disabled 不执行；启用后跑 6 张只读报表 SQL 并输出行数；单条失败不阻断；只 query 不改数据；
+ * 可重复执行；无锁/JDBC 时安全返回。
+ */
+class InspectionSqlReportTaskTest {
+
+    private static ObjectProvider<JdbcTemplate> provider(JdbcTemplate jdbc) {
+        return new ObjectProvider<JdbcTemplate>() {
+            @Override
+            public JdbcTemplate getObject() {
+                return jdbc;
+            }
+
+            @Override
+            public JdbcTemplate getObject(Object... args) {
+                return jdbc;
+            }
+
+            @Override
+            public JdbcTemplate getIfAvailable() {
+                return jdbc;
+            }
+
+            @Override
+            public JdbcTemplate getIfUnique() {
+                return jdbc;
+            }
+        };
+    }
+
+    private static ListAppender<ILoggingEvent> attach() {
+        Logger logger = (Logger) LoggerFactory.getLogger(InspectionSqlReportTask.class);
+        ListAppender<ILoggingEvent> appender = new ListAppender<>();
+        appender.start();
+        logger.addAppender(appender);
+        return appender;
+    }
+
+    @Test
+    void disabledByDefaultRunsNothing() {
+        InspectionProperties props = new InspectionProperties();
+        JdbcTemplate jdbc = mock(JdbcTemplate.class);
+        assertEquals(false, props.isEnabled(), "巡检默认 disabled");
+        InspectionSqlReportTask task = new InspectionSqlReportTask(props, provider(jdbc));
+        assertEquals(0, task.runAll(), "disabled 不执行");
+        Mockito.verifyNoInteractions(jdbc);
+    }
+
+    @Test
+    void enabledRunsAllSixReports() {
+        InspectionProperties props = new InspectionProperties();
+        props.setEnabled(true);
+        JdbcTemplate jdbc = mock(JdbcTemplate.class);
+        Mockito.when(jdbc.queryForList(anyString())).thenReturn(List.of());
+        InspectionSqlReportTask task = new InspectionSqlReportTask(props, provider(jdbc));
+        assertEquals(6, task.runAll());
+        verify(jdbc, times(6)).queryForList(anyString());
+    }
+
+    @Test
+    void reportOutputLogsRowCount() {
+        InspectionProperties props = new InspectionProperties();
+        props.setEnabled(true);
+        JdbcTemplate jdbc = mock(JdbcTemplate.class);
+        Mockito.when(jdbc.queryForList(anyString())).thenReturn(List.of(Map.of("a", 1), Map.of("a", 2), Map.of("a", 3)));
+        InspectionSqlReportTask task = new InspectionSqlReportTask(props, provider(jdbc));
+        ListAppender<ILoggingEvent> captured = attach();
+        try {
+            task.runAll();
+            String text = String.join("\n", captured.list.stream().map(ILoggingEvent::getFormattedMessage).toList());
+            assertTrue(text.contains("rows=3"), "报表日志应含行数: " + text);
+            assertTrue(text.contains("[inspection-sql] report"), "应含报表前缀");
+        } finally {
+            ((Logger) LoggerFactory.getLogger(InspectionSqlReportTask.class)).detachAppender(captured);
+        }
+    }
+
+    @Test
+    void singleReportFailureDoesNotBlockOthers() {
+        InspectionProperties props = new InspectionProperties();
+        props.setEnabled(true);
+        JdbcTemplate jdbc = mock(JdbcTemplate.class);
+        AtomicInteger calls = new AtomicInteger();
+        Mockito.doAnswer(inv -> {
+            if (calls.incrementAndGet() == 3) {
+                throw new RuntimeException("模拟第三条 SQL 失败");
+            }
+            return List.of();
+        }).when(jdbc).queryForList(anyString());
+        InspectionSqlReportTask task = new InspectionSqlReportTask(props, provider(jdbc));
+        assertEquals(5, task.runAll(), "单条失败应被捕获，其余继续");
+        verify(jdbc, times(6)).queryForList(anyString());
+    }
+
+    @Test
+    void scheduleConfigDefaults() {
+        InspectionProperties props = new InspectionProperties();
+        assertEquals("0 0 3 * * *", props.getCron());
+        assertEquals(false, props.isEnabled());
+    }
+
+    @Test
+    void onlyReadQueriesNoWrites() {
+        InspectionProperties props = new InspectionProperties();
+        props.setEnabled(true);
+        JdbcTemplate jdbc = mock(JdbcTemplate.class);
+        Mockito.when(jdbc.queryForList(anyString())).thenReturn(List.of());
+        InspectionSqlReportTask task = new InspectionSqlReportTask(props, provider(jdbc));
+        task.runAll();
+        verify(jdbc, times(6)).queryForList(anyString());
+        verify(jdbc, never()).execute(anyString());
+    }
+
+    @Test
+    void noLockOrJdbcSafelyNoop() {
+        InspectionProperties props = new InspectionProperties();
+        props.setEnabled(true);
+        InspectionSqlReportTask noJdbc = new InspectionSqlReportTask(props, new ObjectProvider<JdbcTemplate>() {
+            @Override
+            public JdbcTemplate getObject() {
+                return null;
+            }
+
+            @Override
+            public JdbcTemplate getObject(Object... args) {
+                return null;
+            }
+
+            @Override
+            public JdbcTemplate getIfAvailable() {
+                return null;
+            }
+
+            @Override
+            public JdbcTemplate getIfUnique() {
+                return null;
+            }
+        });
+        assertEquals(0, noJdbc.runAll(), "启用但无 JdbcTemplate 应安全跳过");
+        // 无分布式锁实例时 runIfEnabled 不应抛错（测试构造传入 null lock）
+        InspectionSqlReportTask noLock = new InspectionSqlReportTask(props, null, provider(mock(JdbcTemplate.class)));
+        noLock.runIfEnabled();
+    }
+
+    @Test
+    void enabledStableAcrossRuns() {
+        InspectionProperties props = new InspectionProperties();
+        props.setEnabled(true);
+        JdbcTemplate jdbc = mock(JdbcTemplate.class);
+        Mockito.when(jdbc.queryForList(anyString())).thenReturn(List.of());
+        InspectionSqlReportTask task = new InspectionSqlReportTask(props, provider(jdbc));
+        assertEquals(6, task.runAll());
+        assertEquals(6, task.runAll());
+        verify(jdbc, times(12)).queryForList(anyString());
+    }
+}