The present invention discloses a dummy skin durability testing device, comprising a control system, an impact device, a bearing mechanism (14), a locking mechanism, a rebound mechanism (15) and an air pump (16). The dummy skin durability testing device is characterized in that the control system is used for controlling the travel direction of a cylinder push rod, performing timing, counting the number of times of impacts and displaying; the impact device is used for applying an impact force as required on a to-be-tested dummy skin part; the bearing mechanism (14) is used for mounting the to-be-tested dummy skin part; and the locking mechanism is used for locking the rebound bearing mechanism (14) in one direction after the dummy skin part is impacted.