A robot simulation device, by which a calculation of a cycle time and a simulation of a human intervention-type robot system can be easily carried out with less effort by an operator. The simulation device has: an operation distributing part which distributes a plurality of operations to the robot and the human, based on a weight of an article to be worked in each operation set according to each category of the plurality of operations included in the cooperative operation, a conveying distance of the article, and a required time in each operation; a program generating part which generates a motion program for the robot and the human based on a result of distribution of operations obtained by the operation distributing part; and a cycle time calculating part which executes a simulation of the motion program and calculates a cycle time of the motion program.
Robot simulation device for human intervention-type robot system