diff --git a/consts/public/table_name.go b/consts/public/table_name.go
index a7486f3..7980793 100644
--- a/consts/public/table_name.go
+++ b/consts/public/table_name.go
@@ -9,4 +9,5 @@ const (
 	TableNameModelSession   = "model_session"
 	TableNameModelTaskStart = "model_task_start"
 	TableNameModelTaskEnd   = "model_task_end"
+	TableNameErrorMemory    = "error_memory"
 )
diff --git a/model/entity/error_memory.go b/model/entity/error_memory.go
new file mode 100644
index 0000000..c71df0e
--- /dev/null
+++ b/model/entity/error_memory.go
@@ -0,0 +1,37 @@
+package entity
+
+import "gitea.redpowerfuture.com/red-future/common/beans"
+
+type errorMemoryCol struct {
+	beans.SQLBaseCol
+	MemoryKey      string
+	Upstream       string
+	ErrorCode      string
+	MsgFingerprint string
+	Retryable      string
+	Reason         string
+	AnalyzedBy     string
+}
+
+var ErrorMemoryCol = errorMemoryCol{
+	SQLBaseCol:     beans.DefSQLBaseCol,
+	MemoryKey:      "memory_key",
+	Upstream:       "upstream",
+	ErrorCode:      "error_code",
+	MsgFingerprint: "msg_fingerprint",
+	Retryable:      "retryable",
+	Reason:         "reason",
+	AnalyzedBy:     "analyzed_by",
+}
+
+// ErrorMemory 错误重试记忆（LLM 分析结论持久化，永久有效）
+type ErrorMemory struct {
+	beans.SQLBaseDO `orm:",inline"`
+	MemoryKey       string `orm:"memory_key" json:"memoryKey" dc:"记忆键=SHA-256(upstream|code|归一化消息)"`
+	Upstream        string `orm:"upstream" json:"upstream" dc:"失败上游BaseURL"`
+	ErrorCode       string `orm:"error_code" json:"errorCode" dc:"错误码"`
+	MsgFingerprint  string `orm:"msg_fingerprint" json:"msgFingerprint" dc:"归一化消息md5"`
+	Retryable       bool   `orm:"retryable" json:"retryable" dc:"是否可重试"`
+	Reason          string `orm:"reason" json:"reason" dc:"分析原因"`
+	AnalyzedBy      string `orm:"analyzed_by" json:"analyzedBy" dc:"分析模型名"`
+}
diff --git a/update.sql b/update.sql
index 6f7f2d2..83de068 100644
--- a/update.sql
+++ b/update.sql
@@ -361,4 +361,28 @@ WHERE r.system_model = false AND s.system_model = true
 ALTER TABLE model_gateway_model_manage
     ADD COLUMN IF NOT EXISTS error_message_mapping JSONB DEFAULT NULL;
 COMMENT ON COLUMN model_gateway_model_manage.error_message_mapping
-    IS '错误消息映射：{code,message} 的 schema 树（type/attrs/value/defaultValue），解析模型错误响应，defaultValue 为成功码';
\ No newline at end of file
+    IS '错误消息映射：{code,message} 的 schema 树（type/attrs/value/defaultValue），解析模型错误响应，defaultValue 为成功码';
+
+-- =========================
+-- 错误重试记忆：LLM 分析上游模型错误是否可重试的持久知识库
+-- memory_key = SHA-256(upstream|error_code|归一化消息)，唯一；命中直接复用，永久有效
+-- =========================
+CREATE TABLE IF NOT EXISTS model_gateway_error_memory (
+    id              BIGSERIAL PRIMARY KEY,
+    tenant_id       BIGINT DEFAULT 0,
+    creator         VARCHAR(64) DEFAULT '',
+    created_at      TIMESTAMPTZ DEFAULT now(),
+    updater         VARCHAR(64) DEFAULT '',
+    updated_at      TIMESTAMPTZ DEFAULT now(),
+    deleted_at      TIMESTAMPTZ DEFAULT NULL,
+    memory_key      CHAR(64) NOT NULL,
+    upstream        VARCHAR(512) NOT NULL DEFAULT '',
+    error_code      VARCHAR(128) NOT NULL DEFAULT '',
+    msg_fingerprint CHAR(32) NOT NULL DEFAULT '',
+    retryable       BOOLEAN NOT NULL DEFAULT false,
+    reason          VARCHAR(512) NOT NULL DEFAULT '',
+    analyzed_by     VARCHAR(128) NOT NULL DEFAULT ''
+);
+CREATE UNIQUE INDEX IF NOT EXISTS uk_error_memory_memory_key
+    ON model_gateway_error_memory (memory_key)
+    WHERE deleted_at IS NULL;
\ No newline at end of file