Abstract The design is based on the CAN bus for the realization of the data collection for data collection and storage and management of the design. Main parameters of the serial communication and the establishment, the data collected automatically or manually collected and historical probability of queries. Brief introduction of the VB MSCOMM controls and ADO controls the applications, and CAN bus. Detailed introduction of the PC and based on the CAN bus data acquisition for the communication protocol, using a PC for data collection, for such an operation. The design of the four main modules: 1 The establishment of the database The establishment of a database to store the data collection processing 2 Communication Protocol To achieve PC and collector of data transmission protocol of agreement 3 Computer procedures Serial communications settings, data collection and queries 4 Building windows Create Data Collector PC interface Key Words:Data Acquisition System;Database;ADO control;MSComm control;Serial Communication Protoco