diff --git a/src/shared/lib/audit-logger.ts b/src/shared/lib/audit-logger.ts
index 69f425f..7cfc948 100644
--- a/src/shared/lib/audit-logger.ts
+++ b/src/shared/lib/audit-logger.ts
@@ -5,6 +5,9 @@ import { db } from "@/shared/db"
 import { auditLogs } from "@/shared/db/schema"
 import { getSession } from "@/shared/lib/session"
 import { resolveClientIp, getUserAgent } from "@/shared/lib/http-utils"
+import { createModuleLogger } from "@/shared/lib/logger"
+
+const log = createModuleLogger("audit-logger")
 
 export type AuditLogStatus = "success" | "failure"
 
@@ -19,7 +22,8 @@ export interface LogAuditParams {
 
 /**
  * Record an audit log entry for the current authenticated user.
- * Silently fails on error so it never breaks the main operation.
+ *
+ * Note: 失败时记录到 logger.warn 而非静默吞没，确保运维可感知审计写入失败。
  */
 export async function logAudit(params: LogAuditParams): Promise<void> {
   try {
@@ -40,7 +44,10 @@ export async function logAudit(params: LogAuditParams): Promise<void> {
       userAgent,
       status: params.status ?? "success",
     })
-  } catch {
-    // Silently fail - logging should not break the main operation
+  } catch (error) {
+    log.warn(
+      { err: error, action: params.action, module: params.module },
+      "Audit log write failed"
+    )
   }
 }
diff --git a/src/shared/lib/change-logger.ts b/src/shared/lib/change-logger.ts
index a7db148..7c4325f 100644
--- a/src/shared/lib/change-logger.ts
+++ b/src/shared/lib/change-logger.ts
@@ -6,6 +6,9 @@ import { db } from "@/shared/db"
 import { dataChangeLogs } from "@/shared/db/schema"
 import { getSession } from "@/shared/lib/session"
 import { resolveClientIp } from "@/shared/lib/http-utils"
+import { createModuleLogger } from "@/shared/lib/logger"
+
+const log = createModuleLogger("change-logger")
 
 export type DataChangeAction = "create" | "update" | "delete"
 
@@ -19,7 +22,8 @@ export interface LogDataChangeParams {
 
 /**
  * Record a data change log entry for the current authenticated user.
- * Silently fails on error so it never blocks the main operation.
+ *
+ * Note: 失败时记录到 logger.warn 而非静默吞没，确保运维可感知变更日志写入失败。
  */
 export async function logDataChange(params: LogDataChangeParams): Promise<void> {
   try {
@@ -37,7 +41,10 @@ export async function logDataChange(params: LogDataChangeParams): Promise<void>
       changedByName: session?.user?.name ?? "unknown",
       ipAddress,
     })
-  } catch {
-    // Silently fail - change logging must not break the main operation
+  } catch (error) {
+    log.warn(
+      { err: error, tableName: params.tableName, recordId: params.recordId },
+      "Change log write failed"
+    )
   }
 }
diff --git a/src/shared/lib/login-logger.ts b/src/shared/lib/login-logger.ts
index ceb841d..f4583ec 100644
--- a/src/shared/lib/login-logger.ts
+++ b/src/shared/lib/login-logger.ts
@@ -4,6 +4,9 @@ import { createId } from "@paralleldrive/cuid2"
 import { db } from "@/shared/db"
 import { loginLogs } from "@/shared/db/schema"
 import { resolveClientIp, getUserAgent } from "@/shared/lib/http-utils"
+import { createModuleLogger } from "@/shared/lib/logger"
+
+const log = createModuleLogger("login-logger")
 
 export type LoginLogAction = "signin" | "signout" | "signup"
 export type LoginLogStatus = "success" | "failure"
@@ -19,7 +22,8 @@ export interface LogLoginEventParams {
 /**
  * Record a login-related log entry (signin/signout/signup).
  * Does NOT depend on auth context since it runs during auth events.
- * Silently fails on error so it never breaks the auth flow.
+ *
+ * Note: 失败时记录到 logger.warn 而非静默吞没，确保运维可感知登录日志写入失败。
  */
 export async function logLoginEvent(params: LogLoginEventParams): Promise<void> {
   try {
@@ -36,7 +40,10 @@ export async function logLoginEvent(params: LogLoginEventParams): Promise<void>
       userAgent,
       errorMessage: params.errorMessage ?? null,
     })
-  } catch {
-    // Silently fail - logging should not break the auth flow
+  } catch (error) {
+    log.warn(
+      { err: error, action: params.action, userEmail: params.userEmail },
+      "Login log write failed"
+    )
   }
 }