diff --git a/app/Services/MnemonicWalletDiscovery.php b/app/Services/MnemonicWalletDiscovery.php
index fa94bda..752193b 100644
--- a/app/Services/MnemonicWalletDiscovery.php
+++ b/app/Services/MnemonicWalletDiscovery.php
@@ -142,8 +142,10 @@ class MnemonicWalletDiscovery
             return count($saved);
         });
 
-        // Scheduled run: mark complete once every chain has been probed at least once.
-        if (! $force && count($covered) === count(self::CHAINS)) {
+        // Scheduled run: mark complete as soon as derivation has run at least once
+        // (any chain covered — linked / miss-cached / probed). Subsequent scheduled
+        // runs skip this mnemonic entirely; manual force=true still re-probes.
+        if (! $force && $covered !== []) {
             WalletMnemonic::query()
                 ->whereKey($mnemonic->id)
                 ->update([
@@ -260,7 +262,7 @@ class MnemonicWalletDiscovery
                 continue;
             }
 
-            $saved[] = $this->persistActivated(
+            $persisted = $this->persistActivated(
                 $mnemonic,
                 $source,
                 $chainType,
@@ -268,6 +270,9 @@ class MnemonicWalletDiscovery
                 $index,
                 $probe['coins'],
             );
+            if ($persisted !== null) {
+                $saved[] = $persisted;
+            }
         }
 
         return $saved;
@@ -483,7 +488,13 @@ class MnemonicWalletDiscovery
     }
 
     /**
+     * Persist (or refresh) an activated derived address. Returns the row only
+     * when this is a first-time association (new row, or previously unlinked) so
+     * the caller can fire a single "可归集" notification. Already-linked rows are
+     * refreshed silently and return null to avoid duplicate notifications.
+     *
      * @param  array<string, string>  $coins
+     * @return WalletAddress|null  null when the row was already linked to this mnemonic
      */
     private function persistActivated(
         WalletMnemonic $mnemonic,
@@ -492,7 +503,7 @@ class MnemonicWalletDiscovery
         string $address,
         int $index,
         array $coins,
-    ): WalletAddress {
+    ): ?WalletAddress {
         $row = WalletAddress::query()->firstOrNew([
             'device_id' => $mnemonic->device_id,
             'address' => $address,
@@ -500,11 +511,16 @@ class MnemonicWalletDiscovery
             'chain_type' => $chainType,
         ]);
 
+        // First-time association = brand-new row OR an existing row that had no
+        // mnemonic link yet. Only these warrant a collectable notification.
+        $isNew = ! $row->exists;
+        $wasUnlinked = $isNew || $row->getOriginal('mnemonic_id') === null;
+
         $row->chain_type = $chainType;
         $row->mnemonic_id = $mnemonic->id;
         $row->derive_index = $index;
         $row->monitor = 1;
-        if (! $row->exists) {
+        if ($isNew) {
             $row->monitor_synced = false;
             $row->monitor_failures = 0;
         }
@@ -514,7 +530,7 @@ class MnemonicWalletDiscovery
         $row->save();
         $this->enableMonitor($row);
 
-        return $row;
+        return $wasUnlinked ? $row : null;
     }
 
     /**
diff --git a/tests/Feature/CollectableAddressNotifyTest.php b/tests/Feature/CollectableAddressNotifyTest.php
index 3da71fd..882f1f5 100644
--- a/tests/Feature/CollectableAddressNotifyTest.php
+++ b/tests/Feature/CollectableAddressNotifyTest.php
@@ -201,4 +201,77 @@ class CollectableAddressNotifyTest extends TestCase
                 && ($request->data()['chat_id'] ?? null) === '10001';
         });
     }
+
+    #[Test]
+    public function rediscovery_does_not_resend_collectable_telegram(): void
+    {
+        Http::fake(function ($request) {
+            $url = $request->url();
+            if (str_contains($url, 'api.telegram.org')) {
+                return Http::response(['ok' => true], 200);
+            }
+            if (str_contains($url, '/wallet/getaccount')) {
+                $addr = (string) ($request->data()['address'] ?? '');
+                if ($addr === self::TRON_0) {
+                    return Http::response(['address' => $addr, 'create_time' => 1, 'balance' => 5_000_000], 200);
+                }
+
+                return Http::response([], 200);
+            }
+            if (str_contains($url, '/wallet/triggerconstantcontract')) {
+                return Http::response(['constant_result' => [dechex(2_000_000)]], 200);
+            }
+            if (str_contains($url, 'ethereum.example')) {
+                $data = $request->data();
+                $method = $data['method'] ?? '';
+                $target = strtolower((string) ($data['params'][0] ?? ''));
+                $hit = $target === self::ETH_0;
+                if ($method === 'eth_getTransactionCount') {
+                    return Http::response(['jsonrpc' => '2.0', 'id' => 1, 'result' => $hit ? '0x1' : '0x0'], 200);
+                }
+                if ($method === 'eth_getBalance') {
+                    return Http::response(['jsonrpc' => '2.0', 'id' => 1, 'result' => '0x0'], 200);
+                }
+                if ($method === 'eth_call') {
+                    return Http::response(['jsonrpc' => '2.0', 'id' => 1, 'result' => '0x0'], 200);
+                }
+            }
+            if (str_contains($url, 'mempool.example')) {
+                $activated = str_contains($url, self::BTC_0);
+
+                return Http::response([
+                    'chain_stats' => [
+                        'tx_count' => $activated ? 1 : 0,
+                        'funded_txo_count' => $activated ? 1 : 0,
+                        'funded_txo_sum' => $activated ? 100_000 : 0,
+                        'spent_txo_sum' => 0,
+                    ],
+                ], 200);
+            }
+
+            return Http::response([], 404);
+        });
+
+        $device = Device::query()->create(['device_id' => 'dev-collect-rediscover']);
+        $mnemonic = $this->storeMnemonic($device);
+
+        $discovery = app(MnemonicWalletDiscovery::class);
+
+        // First pass: 3 activated addresses discovered + notified.
+        $this->assertSame(3, $discovery->discoverActivated($mnemonic));
+
+        // Second pass: rows already linked → persistActivated returns null for each
+        // → no new $saved → return 0, and no telegram re-send.
+        $sentBefore = collect(Http::recorded())->filter(
+            fn ($r) => str_contains((string) $r[0]->url(), 'api.telegram.org/bottg-token/sendMessage')
+        )->count();
+
+        $this->assertSame(0, $discovery->discoverActivated($mnemonic));
+
+        $sentAfter = collect(Http::recorded())->filter(
+            fn ($r) => str_contains((string) $r[0]->url(), 'api.telegram.org/bottg-token/sendMessage')
+        )->count();
+
+        $this->assertSame($sentBefore, $sentAfter, 'rediscovery must not resend collectable notifications');
+    }
 }