Abstract: Process for the automatic determination of an optimal movement program of a robot comprising at least one moving member, a motor associated with the moving member and a control unit capable of activating the motor according to a movement program to move the moving member along a trajectory with a predetermined movement parameter. The process comprises the steps of: acquiring data indicating the load state of the motor and the precision of movement of the robot during the execution of a movement program, comparing the information on the load state and on the precision of movement with predetermined limit values, repeatedly executing the movement program while progressively varying the movement parameter until a measured value of the load state and/or of the precision of movement exceeds a corresponding limit value, and storing as the optimal movement program the last movement program which has been executed without exceeding the limit values.