The utility model provides a can prevent robot system that hand crack up, belongs to automated control device fabrication technical field, adopts robotic arm and workstation to constitute, installs the frame around the workstation, there is a cylinder bottom of frame, the top of every telescopic link all with workstation bottom surface fixed connection, the valve of cylinder is all controlled thetreater and is connected with one, is connected with the extension spring between the bottom of workstation bottom surface and frame, last lateral pressure paster and the longitudinal pressure pasterof being fixed with of robotic arm, the equal connection control treater of lateral pressure paster and longitudinal pressure paster, robotic arm's switch connection control treater. When robotic armused the workstation to operate as the object, when the pressure of robotic arm's hand and workstation contact was greater than the set pressure value, the valve of control treater control cylinder was opened, and the telescopic link returns and contracts, and the workstation moves down, and extension spring auxiliary worktable moves down the speed quickening, the outage of simultaneous control treater control switch, and robotic arm stops the action to the hand that can prevent robotic arm effectively causes the damage because of pressure is too big.