diff --git a/build.rs b/build.rs
index eef26d4..f037b2a 100644
--- a/build.rs
+++ b/build.rs
@@ -7,11 +7,12 @@ fn main() {
     // .flag("-std=c++11")
     .warnings(false)
     .include("./cpp_src/include")
+    .file("./cpp_src/tools.cpp")
+    .file("./cpp_src/db_ops.cpp")
     .file("./cpp_src/fbx_parse.cpp")
     .file("./cpp_src/fbx_wrap.cpp")
-    .file("./cpp_src/db_ops.cpp")
     .compile("fbx_parse");
-    // -------------
+        // -------------
     println!("cargo:rustc-link-search=native=./cpp_src/lib");
     println!("cargo:rustc-link-lib=fbxsdk");
     println!("cargo:rustc-link-lib=sqlite3");
diff --git a/cpp_src/db_ops.cpp b/cpp_src/db_ops.cpp
index fb8a7da..1a01092 100644
--- a/cpp_src/db_ops.cpp
+++ b/cpp_src/db_ops.cpp
@@ -1,7 +1,7 @@
 #include <db_ops.h>
 #include <string>
 #include <cstring>
-
+#include <tools.h>
 using namespace std;
 
 sqlite3 *create_db(const char *db_path, bool overwrite_file)
@@ -19,7 +19,7 @@ sqlite3 *create_db(const char *db_path, bool overwrite_file)
     int result_code = sqlite3_open(db_path, &db);
     if (result_code != SQLITE_OK)
     {
-        fprintf(stderr, "Failed to open DB: %s\n", sqlite3_errmsg(db));
+        fprintf(stderr, "Failed to open DB: %s[%d]\n", sqlite3_errmsg(db), result_code);
         sqlite3_close(db);
         return NULL;
     }
@@ -116,3 +116,38 @@ void create_tables(sqlite3 *db)
         // 成功执行无需释放err_msg（sqlite3_exec成功时err_msg为NULL）
     }
 }
+
+
+// 函数定义
+int save_mesh_to_table(FttContext* ctx, 
+    sqlite3* db, 
+    uint id,
+    const std::string& name, 
+    int vertex_count, int index_count, 
+    const std::string& fbx_id) 
+{
+
+    if (!db || name.empty() || fbx_id.empty()) return -1;
+
+    sqlite3_stmt* stmt = nullptr;
+    const char* sql = "INSERT OR IGNORE INTO meshes (id, name, vertex_count, index_count, fbx_id) VALUES (?, ?, ?, ?, ?);";
+    int rc = sqlite3_prepare_v2(db, sql, -1, &stmt, nullptr);
+    if (rc != SQLITE_OK) {
+        fprintf(stderr, "SQL prepare failed: %s\n", sqlite3_errmsg(db));
+        return rc;
+    }
+
+    sqlite3_bind_int64(stmt, 1, id);
+    sqlite3_bind_text(stmt, 2, name.c_str(), -1, SQLITE_STATIC);
+    sqlite3_bind_int(stmt, 3, vertex_count);
+    sqlite3_bind_int(stmt, 4, index_count);
+    sqlite3_bind_text(stmt, 5, fbx_id.c_str(), -1, SQLITE_STATIC);
+
+    rc = sqlite3_step(stmt);
+    if (rc != SQLITE_DONE && rc != SQLITE_CONSTRAINT) {
+        fprintf(stderr, "SQL step failed: %s\n", sqlite3_errmsg(db));
+    }
+
+    sqlite3_finalize(stmt);
+    return rc == SQLITE_DONE ? 0 : -1;
+}
\ No newline at end of file
diff --git a/cpp_src/fbx_parse.cpp b/cpp_src/fbx_parse.cpp
index baed2b8..687f873 100644
--- a/cpp_src/fbx_parse.cpp
+++ b/cpp_src/fbx_parse.cpp
@@ -8,7 +8,7 @@ using namespace std;
 
 extern "C" {
     // 定义给Rust调用的接口函数
-    void fbx_parse(const FttContext* ctx) 
+    void fbx_parse(FttContext* ctx) 
     {
         printf("%s\n", ctx->fbx_file);
         FbxManager* lSdkManager = FbxManager::Create();
@@ -41,19 +41,23 @@ extern "C" {
         }
     }
 
-    void load_fbx_mesh_to_db(FttContext* ctx) 
+    void load_fbx_mesh_to_db( FttContext* ctx) 
     {
+        // get mutable data
+        auto temp = ctx_from_const(ctx);
+        FttContext* mut_ctx = &temp;
 
         // 按fbx名称生成 ${ctx.out_dir}/sqlite3.db
         // 初始化db赋值到ctx.db
         sqlite3* db = create_db((std::string(ctx->out_dir) + "/db.sqlite3").c_str(), true);
-        printf("db---> %x\n", db);
-        ctx->db = db;
+        if (db == NULL) {
+            return;
+        }
+        mut_ctx->db = db;
         // init db tables
-        create_tables(ctx->db);
-
+        create_tables(mut_ctx->db);
 
         FbxNode* root = get_fbx_root_node(ctx->fbx_file);
-        each_node(ctx, root, 0);
+        each_node(mut_ctx, root, 0);
     }
 }
diff --git a/cpp_src/fbx_wrap.cpp b/cpp_src/fbx_wrap.cpp
index 91cae15..c7aaf64 100644
--- a/cpp_src/fbx_wrap.cpp
+++ b/cpp_src/fbx_wrap.cpp
@@ -1,29 +1,31 @@
-#include "fbx_wrap.h"
+#include <fbx_wrap.h>
 #include <stdio.h>
 #include <iostream>
+#include <db_ops.h>
+#include <tools.h>
 
 using namespace std;
 
-int load_triangles(fbxsdk::FbxNodeAttribute* attr, std::vector<Triangle>& triangles) { 
+int load_triangles(fbxsdk::FbxNodeAttribute* attr, std::vector<V3>& indices, std::vector<V3>& triangles) { 
+    if (!attr || attr->GetAttributeType() != FbxNodeAttribute::eMesh) return false;
     FbxMesh* mesh = static_cast<FbxMesh*>(attr);
-    // 顶点数据
-    // int ctrlPointCount = mesh->GetControlPointsCount();
-    // vertices.assign(mesh->GetControlPoints(), mesh->GetControlPoints() + ctrlPointCount);
-    
-    // 三角化并提取三角形索引
-    FbxGeometryConverter converter(mesh->GetFbxManager());
-    if (!converter.Triangulate(mesh, true)) return false; // 强制三角化
-    
+
     int polyCount = mesh->GetPolygonCount();
-    triangles.reserve(polyCount);
     for (int i = 0; i < polyCount; ++i) {
-        if (mesh->GetPolygonSize(i) != 3) continue; // 跳过非三角形(理论上不会存在)
-        int i0 = mesh->GetPolygonVertex(i, 0);
-        int i1 = mesh->GetPolygonVertex(i, 1);
-        int i2 = mesh->GetPolygonVertex(i, 2);
-        triangles.emplace_back(i0, i1, i2);
+        int vertexCount = mesh->GetPolygonSize(i);
+        std::vector<int> polyIndices;
+        for (int j = 0; j < vertexCount; ++j) {
+            polyIndices.push_back(mesh->GetPolygonVertex(i, j));
+        }
+        for (int j = 2; j < vertexCount; ++j) {
+            indices.push_back({polyIndices[0], polyIndices[j-1], polyIndices[j]});
+            for (int k : {0, j-1, j}) {
+                FbxVector4 pos = mesh->GetControlPointAt(polyIndices[k]);
+                triangles.push_back({(float)pos[0], (float)pos[1], (float)pos[2]});
+            }
+        }
     }
-    return true;
+    return 0;
 }
 
 FbxNode* get_fbx_root_node(const char* fbx_path) 
@@ -55,7 +57,7 @@ FbxNode* get_fbx_root_node(const char* fbx_path)
 }
 
 
-void each_node(const FttContext* ctx, FbxNode* parent_node, int level) 
+void each_node(FttContext* ctx, FbxNode* parent_node, int level) 
 {
     // info
     print_node_info(parent_node, level);
@@ -65,12 +67,20 @@ void each_node(const FttContext* ctx, FbxNode* parent_node, int level)
         FbxNodeAttribute* attr = parent_node->GetNodeAttributeByIndex(i);
         if (attr && attr->GetAttributeType() == FbxNodeAttribute::eMesh)
         {
-            std::vector<Triangle> triangles;
-            int count = load_triangles(attr, triangles);
-            printf("triangles: %ld\n", triangles.size());
+            std::vector<V3> vertices;
+            std::vector<V3> triangles;
+            int count = load_triangles(attr, vertices, triangles);
+            uint id = attr->GetUniqueID();
+            printf("[%ld]triangles: %ld\n", id, triangles.size());
             // save data to database
             sqlite3* db = ctx->db;
             // todo save mesh into db
+
+            save_mesh_to_table(ctx, ctx->db, 
+                id,
+                attr->GetName(), 
+            vertices.size(), triangles.size(), 
+            parent_node->GetNameOnly().Buffer());
         }
         
     }
diff --git a/cpp_src/include/db_ops.h b/cpp_src/include/db_ops.h
index cb99852..3a8f7b8 100644
--- a/cpp_src/include/db_ops.h
+++ b/cpp_src/include/db_ops.h
@@ -1,6 +1,35 @@
-#include <sqlite3.h>
-
-
+#include <tools.h>
+using namespace std;
+/**
+ * @brief 创建并打开SQLite数据库连接
+ * @param db_path 数据库文件路径
+ * @param overwrite_file 若为true则删除已有文件后创建新数据库
+ * @return 成功返回sqlite3句柄，失败返回NULL
+ */
 sqlite3* create_db(const char* db_path, bool overwrite_file);
 
-void create_tables(sqlite3* db);
\ No newline at end of file
+/**
+ * @brief 在指定数据库中创建必要表结构
+ * @param db 已打开的SQLite数据库句柄
+ * @note 需确保db参数有效且已成功打开
+ */
+void create_tables(sqlite3* db);
+
+
+///////////////////////////
+//////// 数据保存 /////////
+///////////////////////////
+
+/**
+ * @brief 将网格数据元信息保存到数据库表
+ * @param ctx FTT上下文句柄，包含日志/错误处理等公共资源
+ * @param db 已打开的SQLite数据库连接
+ * @param name 网格名称(唯一标识)
+ * @param vertex_count 顶点数量
+ * @param index_count 索引数量
+ * @param fbx_id 关联的FBX文件ID
+ * @return 成功返回SQLITE_OK，失败返回SQLite错误码(<0)
+ * @note 1. 参数需确保有效：ctx/db非NULL，name/fbx_id非空
+ *       2. 内部自动处理事务，重复name会触发唯一键冲突
+ */
+int save_mesh_to_table(FttContext *ctx, sqlite3 *db, uint id, const std::string &name, int vertex_count, int index_count, const std::string &fbx_id);
diff --git a/cpp_src/include/fbx_wrap.h b/cpp_src/include/fbx_wrap.h
index fc51a4f..4acec55 100644
--- a/cpp_src/include/fbx_wrap.h
+++ b/cpp_src/include/fbx_wrap.h
@@ -1,11 +1,8 @@
-#include <fbxsdk.h>
-#include <vector>
 #include <tools.h>
-#include <tuple>
 
 using namespace std;
 
-using Triangle = std::tuple<int, int, int>;
+using V3 = std::tuple<int, int, int>;
 
 /**
  * 递归遍历FBX节点树结构
@@ -14,7 +11,7 @@ using Triangle = std::tuple<int, int, int>;
  * @note 函数内部会递归访问parent_node的所有直接子节点和间接子节点
  * @warning 若输入的parent_node无效（如野指针）可能导致程序崩溃
  */
-void each_node(const FttContext* ctx, FbxNode* parent_node, int level);
+void each_node(FttContext* ctx, FbxNode* parent_node, int level);
 /**
  * 打印FBX节点的基本信息（含层级缩进）
  * @param node 待打印信息的节点指针（nullptr时输出警告日志）
@@ -32,11 +29,13 @@ void print_node_info(FbxNode* node, int level);
  */
 FbxNode* get_fbx_root_node(const char* fbx_path);
 
+
 /**
- * 从FBX属性提取三角形数据并填充到向量
- * @param attr FBX节点属性指针（需为Mesh类型，非Mesh类型返回0）
- * @param triangles 输出三角形数据的向量引用（会自动清空原有数据）
- * @return int 成功提取的三角形数量，失败返回-1（如attr为空或非Mesh类型）
- * @note 仅处理三角形网格，四边形等多边形会被自动三角化
+ * @brief 从FBX网格属性加载顶点数据和三角化索引
+ * @param[in] attr FBX节点属性，需为FbxMesh类型
+ * @param[out] vertices 输出顶点坐标数组（每个Triangle存储3个FbxVector4顶点）
+ * @param[out] triangles 输出三角形索引数组（每个Triangle存储3个顶点索引）
+ * @return bool 成功返回true，失败返回false
+ * @note 内部会强制三角化网格，非三角形多边形将被忽略
  */
-int load_triangles(fbxsdk::FbxNodeAttribute* attr, std::vector<Triangle>& triangles);
\ No newline at end of file
+int load_triangles(fbxsdk::FbxNodeAttribute* attr, std::vector<V3>& indices, std::vector<V3>& triangles);
diff --git a/cpp_src/include/tools.h b/cpp_src/include/tools.h
index 2f88071..08ed26d 100644
--- a/cpp_src/include/tools.h
+++ b/cpp_src/include/tools.h
@@ -1,5 +1,14 @@
+#ifndef _TOOLS_H_
+#define _TOOLS_H_
+
+#include <fbxsdk.h>
+#include <tuple>
+#include <vector>
 #include <sqlite3.h>
 
+#include <string>
+
+using namespace std;
 
 typedef struct {
     char* fbx_file;
@@ -8,5 +17,7 @@ typedef struct {
     sqlite3* db;
 } FttContext;
 
+FttContext ctx_from_const(const FttContext* ctx);
+
+#endif
 
-void create_tables(sqlite3* db);
\ No newline at end of file
diff --git a/cpp_src/tools.cpp b/cpp_src/tools.cpp
new file mode 100644
index 0000000..35c9706
--- /dev/null
+++ b/cpp_src/tools.cpp
@@ -0,0 +1,11 @@
+#include <tools.h>
+
+FttContext ctx_from_const(const FttContext* ctx) {
+    FttContext mut_ctx;
+
+    mut_ctx.db = ctx->db;
+    mut_ctx.fbx_file = ctx->fbx_file;
+    mut_ctx.out_dir = ctx->out_dir;
+
+    return mut_ctx;
+}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index dda9da7..413bb89 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,8 +1,8 @@
 use std::{ffi::CString, os::raw::c_char};
 
 fn main() {
-    convert_fbx_to_3dtiles("/root/data/绿科-三维视图-{三维}111.fbx", 
-    "/root/data/out/lk");
+    convert_fbx_to_3dtiles("/root/src/fbx_to_3dtiles/out/绿科-三维视图-{三维}111.fbx", 
+    "/root/src/fbx_to_3dtiles/out/lk");
 }
 
 #[repr(C)]