The problem of monitoring of some area by means of mobile robots is considered. In the stated problem we assume that the area with obstacles is given and randomly located marks are also given. The control object has the field of viewing. It is necessary to find the optimal control, which will move the robots from the initial state to the terminal state for a given time and scan as many marks as possible. To solve the task the evolutionary algorithm of grey wolf optimizer is used. © 2018 IEEE.