diff --git a/server/web3service/models/factory.js b/server/web3service/models/factory.js
index f4e4e6f..5eb0616 100644
--- a/server/web3service/models/factory.js
+++ b/server/web3service/models/factory.js
@@ -10,6 +10,8 @@ function add(clsName, modName) {
 }
 
 function init() {
+  add('Transaction', 'transaction');
+  add('Log', 'log');
 }
 
 function create(name, session) {
diff --git a/server/web3service/models/log.js b/server/web3service/models/log.js
new file mode 100644
index 0000000..c6106d1
--- /dev/null
+++ b/server/web3service/models/log.js
@@ -0,0 +1,35 @@
+const utils = require('j7/utils');
+const BaseModel = require('./basemodel');
+
+class Log extends BaseModel {
+
+  async add(params) {
+    const result = {
+      err: null,
+      seqId: 0
+    };
+    const nowTime = utils.getUtcTime();
+    const fields = [
+        ['type', params['type']],
+        ['subType', params['sub_type']],
+        ['net_id', params['net_id']],
+        ['createtime', nowTime],
+        ['modifytime', nowTime],
+    ];
+    for (i = 1; i <= 4; ++i) {
+      const key = 'param' + i;
+      if (utils.hasKey(params, key)) {
+        fields.push([key, params[key]]);
+      }
+    }
+    await this.getSession().marketConn
+    (
+      'insert',
+      't_log',
+      fields
+    );
+  }
+
+}
+
+module.exports = Log;