Multiple probe testing all-in-one machines are used in series to share the loading and unloading system, and the central control machine can remotely control all functions of the whole line or a single machine, so as to solve the problem of batch centralized distribution and management of tested products; It can continue to operate 24 hours a day, support the arbitrary expansion of the production line, effectively improve the utilization rate of the equipment, and meet the needs of customers for the construction and operation of intelligent lighthouse factories.