On the main characteristic of judging in the athletics competition;

With the application of electrical net information technology in track and field competition especially in timing,traditional manpower timing and outdated film camera timing system have been replaced by high intelligent,digital electronic timing net system.

Psychological adjustment of referees in track and field events;

The paper makes an investigation and analysis to the current situation of Heilongjiang province track and field referee team.

Applying of Multimedia Courseware in Referee Skill for Track and Field;