The invention discloses a robot tracking route updating method and system based on moving object tracking, wherein, the method comprises the following steps: a robot receives a tracking instruction for moving object tracking sent by a user terminal, wherein the tracking instruction is generated by a user of the user terminal based on an operation interface of the user terminal; the robot respondsto the tracking command, starts the binocular camera on the robot, and collects the real-time image of the moving object. The real-time three-dimensional model of the moving object is obtained by real-time three-dimensional modeling processing of the real-time image. The real-time moving trajectory of the moving object is determined according to the real-time three-dimensional model diagram. The robot updates the tracking path according to the real-time moving trajectory of the moving object. In the embodiment of the invention, through the embodiment of the invention, the robot can carry out full-range motion tracking on the moving object, and the robot is ensured not to let the moving object out of the tracking range when tracking the moving object.