|（Department of Physical Education，Shenzhen University，Shenzhen 518052，China)
Abstract: Based on health belief model theory, and by using physical health belief checklist and exercising attitude checklist, the author surveyed 383 college students. By building a structural equation model, the author studied the mechanism of physical health belief affecting health behaviors. Main research results are as follows: 1)knowing ex-ercising benefits and constitutional conditions as well as patient’s susceptibility to attention to constitution evalua-tion results have a greater effect; perceiving exercising benefits affects constitution evaluation self efficiency in di-rect or indirect ways and has the greatest effect; 2)constitution evaluation self efficiency has a significant mediating effect between various factors regarding physical health belief and exercising behavior intentions and behavior hab-its; 3)physical health belief does not affect health behavior by means of simple direct relations, but affects behavior intentions and behavior habits in effect gradually accumulated way.
Key words: sports psychology；physical health of college students；health belief；physical exercising；behavior intention；behavior habit