diff --git a/backend/src/main/kotlin/com/wrbug/polymarketbot/dto/AccountDto.kt b/backend/src/main/kotlin/com/wrbug/polymarketbot/dto/AccountDto.kt
index 6860298..c0c35cc 100644
--- a/backend/src/main/kotlin/com/wrbug/polymarketbot/dto/AccountDto.kt
+++ b/backend/src/main/kotlin/com/wrbug/polymarketbot/dto/AccountDto.kt
@@ -68,9 +68,9 @@ data class SystemConfigDto(
     val builderApiKeyConfigured: Boolean,  // Builder API Key 是否已配置
     val builderSecretConfigured: Boolean,  // Builder Secret 是否已配置
     val builderPassphraseConfigured: Boolean,  // Builder Passphrase 是否已配置
-    val builderApiKeyDisplay: String? = null,  // Builder API Key 显示值（部分显示，用于前端展示）
-    val builderSecretDisplay: String? = null,  // Builder Secret 显示值（部分显示，用于前端展示）
-    val builderPassphraseDisplay: String? = null,  // Builder Passphrase 显示值（部分显示，用于前端展示）
+    val builderApiKeyDisplay: String? = null,  // Builder API Key 显示值（完整，用于前端展示）
+    val builderSecretDisplay: String? = null,  // Builder Secret 显示值（完整，用于前端展示）
+    val builderPassphraseDisplay: String? = null,  // Builder Passphrase 显示值（完整，用于前端展示）
     val autoRedeemEnabled: Boolean = true  // 自动赎回（系统级别配置，默认开启）
 )
 
diff --git a/backend/src/main/kotlin/com/wrbug/polymarketbot/service/system/SystemConfigService.kt b/backend/src/main/kotlin/com/wrbug/polymarketbot/service/system/SystemConfigService.kt
index 819c1e9..22408d7 100644
--- a/backend/src/main/kotlin/com/wrbug/polymarketbot/service/system/SystemConfigService.kt
+++ b/backend/src/main/kotlin/com/wrbug/polymarketbot/service/system/SystemConfigService.kt
@@ -25,19 +25,6 @@ class SystemConfigService(
         const val CONFIG_KEY_BUILDER_SECRET = "builder.secret"
         const val CONFIG_KEY_BUILDER_PASSPHRASE = "builder.passphrase"
         const val CONFIG_KEY_AUTO_REDEEM = "auto_redeem"
-
-        /**
-         * 遮蔽敏感信息，仅显示前4位和后4位
-         * 例如：abcd1234...wxyz5678
-         */
-        fun maskSensitiveValue(value: String?): String? {
-            if (value == null) return null
-            return when {
-                value.length <= 8 -> "****"  // 太短则完全遮蔽
-                value.length <= 16 -> "${value.take(2)}...${value.takeLast(2)}"
-                else -> "${value.take(4)}...${value.takeLast(4)}"
-            }
-        }
     }
 
     /**
@@ -49,10 +36,10 @@ class SystemConfigService(
         val builderPassphrase = getConfigValue(CONFIG_KEY_BUILDER_PASSPHRASE)
         val autoRedeem = isAutoRedeemEnabled()
 
-        // 获取遮蔽后的显示值（仅显示部分字符，用于前端确认配置）
+        // 获取完整显示值（用于前端展示与编辑）
         val builderApiKeyDisplay = builderApiKey?.let {
             try {
-                maskSensitiveValue(cryptoUtils.decrypt(it))
+                cryptoUtils.decrypt(it)
             } catch (e: Exception) {
                 null
             }
@@ -60,7 +47,7 @@ class SystemConfigService(
 
         val builderSecretDisplay = builderSecret?.let {
             try {
-                maskSensitiveValue(cryptoUtils.decrypt(it))
+                cryptoUtils.decrypt(it)
             } catch (e: Exception) {
                 null
             }
@@ -68,7 +55,7 @@ class SystemConfigService(
 
         val builderPassphraseDisplay = builderPassphrase?.let {
             try {
-                maskSensitiveValue(cryptoUtils.decrypt(it))
+                cryptoUtils.decrypt(it)
             } catch (e: Exception) {
                 null
             }
diff --git a/frontend/src/types/index.ts b/frontend/src/types/index.ts
index 449fd5f..a14395b 100644
--- a/frontend/src/types/index.ts
+++ b/frontend/src/types/index.ts
@@ -932,9 +932,9 @@ export interface SystemConfig {
   builderApiKeyConfigured: boolean
   builderSecretConfigured: boolean
   builderPassphraseConfigured: boolean
-  builderApiKeyDisplay?: string  // Builder API Key 显示值（部分显示）
-  builderSecretDisplay?: string  // Builder Secret 显示值（部分显示）
-  builderPassphraseDisplay?: string  // Builder Passphrase 显示值（部分显示）
+  builderApiKeyDisplay?: string  // Builder API Key 显示值（完整）
+  builderSecretDisplay?: string  // Builder Secret 显示值（完整）
+  builderPassphraseDisplay?: string  // Builder Passphrase 显示值（完整）
   autoRedeemEnabled: boolean  // 自动赎回（系统级别配置，默认开启）
 }