The invention provides a method and device for controlling lots of robots to stop emergently. The method comprises the steps of setting multiple position points and position marks corresponding to the position points in the work site of the robots and setting corresponding recognizers on the bottoms of the robots; judging whether all the robots in the site need to be controlled to stop emergently according to breakdown signals when the breakdown signals reported by the robots are monitored; if yes, distributing the position points in the site for the robots for serving as the respective emergency stop positions according to the current position and the moving speed of each robot; controlling each robot to move to the corresponding emergency stop position and controlling each robot to sop moving after each robot is moved to the corresponding emergency stop position. According to the invention, when some robots in the site break down, all the robots in the site can be controlled to stop emergently, and therefore the robots breaking down can be prevented from colliding with other robots, and mutual collision between the robots in the site can be avoided.