Statistics comparing and analysis were done on students in Y A U including their 5 items of body shape and physiological function index. Some scientific basis for physical culture teaching and competition were put forward. Key words Figure; Physiological function; Constitution into three stages At the second stage, COD was removed by 8 3%,NH 3 N by 79 1% At the third stage, COD was removed by 41 9%,NH 3 N by 68 5%,TP by 85 4%,and the color by 84 4% Comparing two processes, it was indicated that the purification effect of fixing algae process on anaerobic digested slurry from pig waste was significantly better than that of floating algae Besides, during the purification, a large quantity of mixed algae could be produced,which could be used as the additive of green feed for breeding various economic animals,and increase the quality and quantity of animals