The invention discloses a robot alarm method and system, and the system comprises a background management system, a plurality of operation and maintenance Apps, and a robot; the plurality of operationand maintenance Apps and the robot establish communication connection with the background management system, and the robot comprises a controller, an IMU, a voice broadcast module, a laser radar sensor, and a camera. The controller is respectively connected with the IMU, the voice broadcast module, the laser radar sensor and the camera, and the controller is connected with the background management system through the communication module. According to the invention, the robot can be effectively supervised, human factor interference can be effectively discovered, the robot can normally operate, normal execution of a robot working process is ensured, and operation can be completed in time.