diff --git a/docs/plans/state.json b/docs/plans/state.json
index 30c3e95..1818707 100644
--- a/docs/plans/state.json
+++ b/docs/plans/state.json
@@ -3724,6 +3724,19 @@
         "docs/plans/state.json"
       ],
       "test_status": "pnpm test:run src/channels/line/adapter.test.ts src/channels/zalo/adapter.test.ts + pnpm typecheck passing"
+    },
+    "line-zalo-channel-minio-overrides": {
+      "status": "completed",
+      "date": "2026-02-17",
+      "updated": "2026-02-17",
+      "summary": "Added channel-specific MinIO override configuration for LINE and Zalo (`line.minio`, `zalo.minio`) with fallback inheritance from `backup.minio`, enabling per-channel endpoint/credential/bucket/prefix control while preserving legacy shared-prefix behavior.",
+      "files_modified": [
+        "src/config/schema.ts",
+        "src/config/schema.test.ts",
+        "src/daemon/channels.ts",
+        "docs/plans/state.json"
+      ],
+      "test_status": "pnpm test:run src/config/schema.test.ts src/daemon/channels.test.ts src/channels/line/adapter.test.ts src/channels/zalo/adapter.test.ts + pnpm typecheck passing"
     }
   },
   "overall_progress": {
diff --git a/src/config/schema.test.ts b/src/config/schema.test.ts
index 86babc3..bd14fe8 100644
--- a/src/config/schema.test.ts
+++ b/src/config/schema.test.ts
@@ -790,6 +790,44 @@ describe('configSchema — line', () => {
     expect(result.line.allowed_source_ids).toEqual([]);
     expect(result.line.require_mention).toBe(true);
     expect(result.line.mention_name).toBe('flynn');
+    expect(result.line.minio.enabled).toBe(false);
+    expect(result.line.minio.prefix).toBe('flynn/channels/line');
+    expect(result.line.minio.secure).toBe(true);
+    expect(result.line.minio.expires).toBe('24h');
+  });
+
+  it('accepts line-specific minio overrides', () => {
+    const result = configSchema.parse({
+      ...minimalConfig,
+      line: {
+        channel_access_token: 'line-token',
+        channel_secret: 'line-secret',
+        minio: {
+          enabled: true,
+          endpoint: 'localhost:9000',
+          access_key: 'line-key',
+          secret_key: 'line-secret',
+          bucket: 'line-attachments',
+          prefix: 'line/files',
+          secure: false,
+          expires: '12h',
+          mc_path: '/usr/local/bin/mc',
+        },
+      },
+    });
+
+    if (!result.line) {
+      throw new Error('Expected line config');
+    }
+    expect(result.line.minio.enabled).toBe(true);
+    expect(result.line.minio.endpoint).toBe('localhost:9000');
+    expect(result.line.minio.access_key).toBe('line-key');
+    expect(result.line.minio.secret_key).toBe('line-secret');
+    expect(result.line.minio.bucket).toBe('line-attachments');
+    expect(result.line.minio.prefix).toBe('line/files');
+    expect(result.line.minio.secure).toBe(false);
+    expect(result.line.minio.expires).toBe('12h');
+    expect(result.line.minio.mc_path).toBe('/usr/local/bin/mc');
   });
 });
 
@@ -842,6 +880,43 @@ describe('configSchema — zalo', () => {
     expect(result.zalo.allowed_user_ids).toEqual([]);
     expect(result.zalo.require_mention).toBe(true);
     expect(result.zalo.mention_name).toBe('flynn');
+    expect(result.zalo.minio.enabled).toBe(false);
+    expect(result.zalo.minio.prefix).toBe('flynn/channels/zalo');
+    expect(result.zalo.minio.secure).toBe(true);
+    expect(result.zalo.minio.expires).toBe('24h');
+  });
+
+  it('accepts zalo-specific minio overrides', () => {
+    const result = configSchema.parse({
+      ...minimalConfig,
+      zalo: {
+        oa_access_token: 'oa-token',
+        minio: {
+          enabled: true,
+          endpoint: 'localhost:9000',
+          access_key: 'zalo-key',
+          secret_key: 'zalo-secret',
+          bucket: 'zalo-attachments',
+          prefix: 'zalo/files',
+          secure: false,
+          expires: '8h',
+          mc_path: '/usr/local/bin/mc',
+        },
+      },
+    });
+
+    if (!result.zalo) {
+      throw new Error('Expected zalo config');
+    }
+    expect(result.zalo.minio.enabled).toBe(true);
+    expect(result.zalo.minio.endpoint).toBe('localhost:9000');
+    expect(result.zalo.minio.access_key).toBe('zalo-key');
+    expect(result.zalo.minio.secret_key).toBe('zalo-secret');
+    expect(result.zalo.minio.bucket).toBe('zalo-attachments');
+    expect(result.zalo.minio.prefix).toBe('zalo/files');
+    expect(result.zalo.minio.secure).toBe(false);
+    expect(result.zalo.minio.expires).toBe('8h');
+    expect(result.zalo.minio.mc_path).toBe('/usr/local/bin/mc');
   });
 });
 
diff --git a/src/config/schema.ts b/src/config/schema.ts
index 49675a4..00c151c 100644
--- a/src/config/schema.ts
+++ b/src/config/schema.ts
@@ -595,6 +595,17 @@ const lineSchema = z.object({
   allowed_source_ids: z.array(z.string()).default([]),
   require_mention: z.boolean().default(true),
   mention_name: z.string().default('flynn'),
+  minio: z.object({
+    enabled: z.boolean().default(false),
+    endpoint: z.string().optional(),
+    access_key: z.string().optional(),
+    secret_key: z.string().optional(),
+    bucket: z.string().optional(),
+    prefix: z.string().default('flynn/channels/line'),
+    secure: z.boolean().default(true),
+    expires: z.string().default('24h'),
+    mc_path: z.string().optional(),
+  }).default({}),
 }).optional();
 
 const feishuSchema = z.object({
@@ -614,6 +625,17 @@ const zaloSchema = z.object({
   allowed_user_ids: z.array(z.string()).default([]),
   require_mention: z.boolean().default(true),
   mention_name: z.string().default('flynn'),
+  minio: z.object({
+    enabled: z.boolean().default(false),
+    endpoint: z.string().optional(),
+    access_key: z.string().optional(),
+    secret_key: z.string().optional(),
+    bucket: z.string().optional(),
+    prefix: z.string().default('flynn/channels/zalo'),
+    secure: z.boolean().default(true),
+    expires: z.string().default('24h'),
+    mc_path: z.string().optional(),
+  }).default({}),
 }).optional();
 
 const browserSchema = z.object({
diff --git a/src/daemon/channels.ts b/src/daemon/channels.ts
index 7c7052a..c79db2f 100644
--- a/src/daemon/channels.ts
+++ b/src/daemon/channels.ts
@@ -26,6 +26,8 @@ function resolveChannelMinioShare(config: Config): {
   bucket: string;
   prefix: string;
   secure: boolean;
+  expires?: string;
+  mcPath?: string;
 } | undefined {
   const minio = config.backup.minio;
   if (!minio.enabled || !minio.endpoint || !minio.access_key || !minio.secret_key || !minio.bucket) {
@@ -42,6 +44,55 @@ function resolveChannelMinioShare(config: Config): {
   };
 }
 
+function resolveChannelMinioShareWithOverrides(
+  base: ReturnType<typeof resolveChannelMinioShare>,
+  override: {
+    enabled: boolean;
+    endpoint?: string;
+    access_key?: string;
+    secret_key?: string;
+    bucket?: string;
+    prefix: string;
+    secure: boolean;
+    expires: string;
+    mc_path?: string;
+  } | undefined,
+): {
+  enabled: boolean;
+  endpoint: string;
+  accessKey: string;
+  secretKey: string;
+  bucket: string;
+  prefix: string;
+  secure: boolean;
+  expires?: string;
+  mcPath?: string;
+} | undefined {
+  if (!override?.enabled) {
+    return base;
+  }
+
+  const endpoint = override.endpoint ?? base?.endpoint;
+  const accessKey = override.access_key ?? base?.accessKey;
+  const secretKey = override.secret_key ?? base?.secretKey;
+  const bucket = override.bucket ?? base?.bucket;
+  if (!endpoint || !accessKey || !secretKey || !bucket) {
+    return undefined;
+  }
+
+  return {
+    enabled: true,
+    endpoint,
+    accessKey,
+    secretKey,
+    bucket,
+    prefix: override.prefix,
+    secure: override.secure,
+    expires: override.expires,
+    mcPath: override.mc_path,
+  };
+}
+
 export function registerChannels(deps: ChannelsDeps): ChannelsResult {
   const { config, channelRegistry, hookEngine, pairingManager, gateway } = deps;
   const channelMinioShare = resolveChannelMinioShare(config);
@@ -181,15 +232,17 @@ export function registerChannels(deps: ChannelsDeps): ChannelsResult {
 
   // Register LINE adapter (if configured)
   if (config.line) {
+    const lineMinioShare = resolveChannelMinioShareWithOverrides(channelMinioShare, config.line.minio);
+    const effectiveLineMinioShare = lineMinioShare && !config.line.minio.enabled
+      ? { ...lineMinioShare, prefix: `${lineMinioShare.prefix.replace(/\/+$/, '')}/channels/line` }
+      : lineMinioShare;
     const lineAdapter = new LineAdapter({
       channelAccessToken: config.line.channel_access_token,
       channelSecret: config.line.channel_secret,
       allowedSourceIds: config.line.allowed_source_ids.length > 0 ? config.line.allowed_source_ids : undefined,
       requireMention: config.line.require_mention,
       mentionName: config.line.mention_name,
-      minio: channelMinioShare
-        ? { ...channelMinioShare, prefix: `${channelMinioShare.prefix.replace(/\/+$/, '')}/channels/line` }
-        : undefined,
+      minio: effectiveLineMinioShare,
     });
     channelRegistry.register(lineAdapter);
     gateway.setLineHandler(lineAdapter);
@@ -212,6 +265,10 @@ export function registerChannels(deps: ChannelsDeps): ChannelsResult {
 
   // Register Zalo adapter (if configured)
   if (config.zalo) {
+    const zaloMinioShare = resolveChannelMinioShareWithOverrides(channelMinioShare, config.zalo.minio);
+    const effectiveZaloMinioShare = zaloMinioShare && !config.zalo.minio.enabled
+      ? { ...zaloMinioShare, prefix: `${zaloMinioShare.prefix.replace(/\/+$/, '')}/channels/zalo` }
+      : zaloMinioShare;
     const zaloAdapter = new ZaloAdapter({
       oaAccessToken: config.zalo.oa_access_token,
       endpoint: config.zalo.endpoint,
@@ -219,9 +276,7 @@ export function registerChannels(deps: ChannelsDeps): ChannelsResult {
       allowedUserIds: config.zalo.allowed_user_ids.length > 0 ? config.zalo.allowed_user_ids : undefined,
       requireMention: config.zalo.require_mention,
       mentionName: config.zalo.mention_name,
-      minio: channelMinioShare
-        ? { ...channelMinioShare, prefix: `${channelMinioShare.prefix.replace(/\/+$/, '')}/channels/zalo` }
-        : undefined,
+      minio: effectiveZaloMinioShare,
     });
     channelRegistry.register(zaloAdapter);
     gateway.setZaloHandler(zaloAdapter);