Objective To observe effects of crawl space sports training from early age on psychological behavior of rats. Methods A total of 25 newborn rats were randomly divided into control group (n=13) and exercise group (n=12).The newborn rats of the exercise group were trained by space motion for four weeks.Rats of 36~37 day-old was measured on the psychological behavior by animal behavior platform,which included Rota-Rod instrument and open-field test instrument. Results 1) The landing latency of exercise group was significantly longer than that of the control group (t=3.031,P<0.01).2) The number of cross grid in exercise group was fewer than that in control group (t=3.710,P<0.01).The activity time in the center area was shorter than that of the control group (t=4.259,P<0.01).The activity time in the peripheral area was longer than that of the control group (t=3.018,P<0.01).3) 5 minutes time-phased analysis showed less activity distance was in first five minutes and shorter activity time was in later five minutes in the center area by. Conclusions The crawl space sports training from early age increased rats' cognitive ability and emotional stability facing new environment.There is a significant increase in rat's motor coordination.