diff --git a/docs/钱包服务架构.md b/docs/钱包服务架构.md
index e284f1e7..83e85924 100644
--- a/docs/钱包服务架构.md
+++ b/docs/钱包服务架构.md
@@ -229,7 +229,7 @@ wallet_recharge_records(
   target_region_id BIGINT NOT NULL,
   policy_id BIGINT NOT NULL,
   policy_version VARCHAR(64) NOT NULL,
-  currency_code VARCHAR(3) NOT NULL,
+  currency_code VARCHAR(8) NOT NULL,
   coin_amount BIGINT NOT NULL,
   usd_minor_amount BIGINT NOT NULL,
   exchange_coin_amount BIGINT NOT NULL,
diff --git a/scripts/mysql/035_wallet_recharge_record_currency_code.sql b/scripts/mysql/035_wallet_recharge_record_currency_code.sql
new file mode 100644
index 00000000..60d0cade
--- /dev/null
+++ b/scripts/mysql/035_wallet_recharge_record_currency_code.sql
@@ -0,0 +1,27 @@
+-- Expand wallet recharge record currency codes so Google Play products such as USDT
+-- can be snapshotted before payment order auditing and Google consume.
+
+SET @wallet_recharge_record_currency_ddl := (
+  SELECT CASE
+    WHEN COUNT(*) = 0 THEN 'SELECT 1'
+    WHEN MAX(CHARACTER_MAXIMUM_LENGTH) < 8 THEN
+      'ALTER TABLE wallet_recharge_records MODIFY COLUMN currency_code VARCHAR(8) NOT NULL COMMENT ''币种编码'''
+    ELSE 'SELECT 1'
+  END
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'wallet_recharge_records'
+    AND COLUMN_NAME = 'currency_code'
+);
+
+PREPARE stmt FROM @wallet_recharge_record_currency_ddl;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SELECT
+  COLUMN_TYPE AS wallet_recharge_records_currency_code_type,
+  IS_NULLABLE AS wallet_recharge_records_currency_code_nullable
+FROM information_schema.COLUMNS
+WHERE TABLE_SCHEMA = DATABASE()
+  AND TABLE_NAME = 'wallet_recharge_records'
+  AND COLUMN_NAME = 'currency_code';
diff --git a/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql b/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql
index 38d5873e..cc7356b0 100644
--- a/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql
+++ b/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql
@@ -439,7 +439,7 @@ CREATE TABLE IF NOT EXISTS wallet_recharge_records (
   target_region_id BIGINT NOT NULL COMMENT '目标区域 ID',
   policy_id BIGINT NOT NULL COMMENT '策略 ID',
   policy_version VARCHAR(64) NOT NULL COMMENT '策略版本',
-  currency_code VARCHAR(3) NOT NULL COMMENT '币种编码',
+  currency_code VARCHAR(8) NOT NULL COMMENT '币种编码',
   coin_amount BIGINT NOT NULL COMMENT '金币数量',
   usd_minor_amount BIGINT NOT NULL COMMENT '美元最小单位数量',
   exchange_coin_amount BIGINT NOT NULL COMMENT '兑换金币数量',