The invention provides a method for evaluating students' extracurricular 
physical exercise performance based on a smart bracelet. The method comprises the following steps that step 1, a user turns onthe smart bracelet after arriving at the playground, the bracelet is automatically connected with a 
base station, the user starts running for exercise, the bracelet records start 
exercise time ts anduploads the start 
exercise time ts to a 
server; step 2, the bracelet collects exercise information of the user in real time and sent data to the 
base station every t0 time, the 
base station uploads the data to the 
server through 
the Internet after receiving the data and saves the data into a 
database; step 3, if not turning off the bracelet, the user continuing running, step 2 is returned, otherwise, the exercise end time te is recorded and uploaded to the 
server, if the 
exercise time T1 equaling to te-ts is less than a data statistics period T, the 
score is 0, and otherwise, statistic analysis is carried out on the exercise data to obtain the 
score. Compared with a traditional 
morning exercise card 
punching system, the method for evaluating the students' extracurricular physical exerciseperformance based on the smart bracelet overcomes the disadvantages, and students can do 
physical exercise in any 
spare time, so that the students can actively participate in extracurricular physicalexercise activities.