PURPOSE: To reduce the manhour for test and softly manage the variation of the number of test boards and facilitate automatic operation by installing an endless annular conveyor line and a branched conveyor line, in the electronic equipment test.

CONSTITUTION: An electronic apparatus 5 loaded onto a base board 6 is transferred in the direction of arrow A by a conveyor line 10, and a series of processes of receiving test B, fundamental test C, temperature test D, continuous running process E, and forwarding confirmation F are executed. When a trouble i generated in the running process E, the equipment is retreated onto the branched conveyor lines 13 and 14, and trouble removing processing is carried- out. With such constitution, a vacant flat car 6 is sent into the receiving test B by a conveyor after the confirmation F of forwarding. Therefore, the transport of the flat car 6 is avoided, and the necessary manhour can be reduced, and the variation of the number of test boards can be managed, and automatic operation is permitted.