Abstract: The present invention relates to an assistance device with which a robotic arm (B) is to be provided, said robotic arm being controlled by an operator (H) and having a tool (m) at the end thereof, characterized in that it includes a control handle (1), which is mounted via a ball-and-socket joint (R3) so as to form an extension of the arm (B) while being offset relative to the tool (m), and a force sensor (4) which is coupled to the robot and ensures the continuous detection, from the handle (1), of the intentional forces of the operator for controlling both the direction and the force of the tool (m). The invention also relates to the collaborative robot provided with the device of the invention, and to the use thereof.