This study aims to evaluate a WAM robot-assisted rehabilitation training technology targeted for improving arm function from aspects of robot kinematic parameters and traditional medical assessment.The experimental platform with WAM robot is built to assist the upper limb hemiplegia patients in marking some simple shapes or doing some interesting games with their upper limbs.Data of trajectory and torque of the WAM robot are collected,and the trajectory tracking error and torque change before and after rehabilitation training are analyzed to evaluate the upper limb function.At the same time,physicians use Brunnstrom levels to appraise the rehabilitation performance.The results show that one month rehabilitation training reduces the robot trajectory tracking error and the torque change,as well as improves the upper limb function indicated by the reduction in random limb movement and rise in Brunnstrom level.This study provides evidence on the effectiveness of the WAM robot-assisted rehabilitation training in improving upper limb's motor function,which is superior to conventional rehabilitation training.