Optoelectronic integration tennis training system capable of detecting the best serve position

The present invention relates to an optoelectronic integration tennis training system capable of detecting the best serve position, which is mainly provided with a ball speed determining module and a light reaction actuating module at relative positions of a predetermined service area. The ball speed determining module is connected to a central processing module, which is connected to a ball hit prompting module. The aforementioned system is used for training with a training ball having color changing reactions to particular wavelength of light. When the training ball is struck by a user and enters the best serve position in the predetermined service area, the training ball changes color due to the projection of laser light emitted by the light reaction actuating module. In the meantime, when the ball speed determining module determines that the ball speed is zero, the central processing module emits a signal to the ball hit prompting module to generate a prompt message, so as to prompt the user to hit the ba