This essay introduces a specific speed timing system used in cycling, which was built by the skill of electrommunication, network communication and database technology. In this system, a wireless real-time timer technique was adopted and communication master station was used. As a result, timing data can be real-time transmitted, stored and analyzed. Owing to the special-used hardware and software, various functions, such as setting up single or multiple timing device network, split time data and to al time data acquisition, data gathering, data exhibition, data inquiring, data storing and data analysis, can be achieved. The use of the system can help coaches solve the problem on dealing with the data, which could be great helpful in improving work efficiency. This system is useful for not only cycling, but also for other kinds of sports needing timed, such as swimming, track and field, Modern Pentathlon and skating.