The invention relates to a judgment 
induction system for a sports competition, which is designed aiming at the technical problems that the traditional competition timing mode is suboptimal; and because the competition field is larger, a lot of spectators can not know the information of competitors in real time. The judgment 
induction system comprises a whistle, a watch, a communicator, a control end and a public display screen, wherein the watch is provided with a 
signal transmitter and a sound control device; the control end is provided with a 
signal receiver, a voice recognition device and a programmable controller; the control end is connected with the public display screen; the 
signal transmitter of the watch is matched with the signal 
receiver of the control end, the sound control device is associated with the whistling tone of the whistle, the communicator is connected with the control end by distant signals, and a display 
chip of the watch is provided with a 
score display module. The judgment 
induction system adopts the whistling tone to control the competition time, so that the competition time is more accurate; the public display screen is adopted to display the real-time messages of related sportsmen so as to increase the watching interests of the spectators; and the judgment induction 
system is suitable for being popularized and used in basketball competitions, football competitions or similar sports competitions.