diff --git a/app/models/forge_message.rb b/app/models/forge_message.rb
new file mode 100644
index 000000000..1543fab58
--- /dev/null
+++ b/app/models/forge_message.rb
@@ -0,0 +1,20 @@
+class ForgeMessage < ActiveRecord::Base
+  # 公共表中活动类型,命名规则:TYPE_OF_{类名}_ACT
+  TYPE_OF_ISSUE_ACT = "Issue"
+  TYPE_OF_MESSAGE_ACT = "Message"
+  TYPE_OF_ATTACHMENT_ACT = "Attachment"
+  TYPE_OF_DOCUMENT_ACT = "Document"
+  TYPE_OF_JOURNAL_ACT = "Journal"
+  TYPE_OF_WIKI_ACT = "Wiki"
+  TYPE_OF_NEWS_ACT = "News"
+
+  attr_accessible :forge_message_id, :forge_message_type, :project_id, :user_id, :viewed
+
+  belongs_to :forge_message ,:polymorphic => true
+  belongs_to :project
+  belongs_to :user
+  validates :user_id,presence: true
+  validates :project_id,presence: true
+  validates :forge_message_id,presence: true
+  validates :forge_message_type, presence: true
+end
diff --git a/db/migrate/20150811083322_create_forge_messages.rb b/db/migrate/20150811083322_create_forge_messages.rb
new file mode 100644
index 000000000..f81b68712
--- /dev/null
+++ b/db/migrate/20150811083322_create_forge_messages.rb
@@ -0,0 +1,13 @@
+class CreateForgeMessages < ActiveRecord::Migration
+  def change
+    create_table :forge_messages do |t|
+      t.integer :user_id
+      t.integer :project_id
+      t.integer :forge_message_id
+      t.string :forge_message_type
+      t.integer :viewed
+
+      t.timestamps
+    end
+  end
+end
diff --git a/spec/factories/forge_messages.rb b/spec/factories/forge_messages.rb
new file mode 100644
index 000000000..05bc84cc1
--- /dev/null
+++ b/spec/factories/forge_messages.rb
@@ -0,0 +1,10 @@
+FactoryGirl.define do
+  factory :forge_message do
+    user_id 1
+project_id 1
+forge_message_id 1
+forge_message_type "MyString"
+viewed 1
+  end
+
+end
diff --git a/spec/models/forge_message_spec.rb b/spec/models/forge_message_spec.rb
new file mode 100644
index 000000000..ce6cd7e26
--- /dev/null
+++ b/spec/models/forge_message_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ForgeMessage, :type => :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end