The utility model discloses an it throws system test appearance equipment fully to exchange dual supply, by the casing, man -machine interface, the main control board, power amplifier module, power module, quantum digital input module, on -off output module and GPS antenna are formed, man -machine interface, the main control board, power amplifier module, power module, quantum digital input module, on -off output module set up in the casing, the GPS antenna set up on the outer terminal surface of casing bottom surface, man -machine interface and main control board signal connection, the main control board respectively with power amplifier module, quantum digital input module, on -off output module signal connection, power amplifier module be provided with the two -stage and enlarge the module, and can export 0~300V alternating current that the three routes is stable simultaneously. The utility model discloses testing program configuration software among the it throws system test appearance equipment fully to exchange dual supply accomplishes the automatic generation afterwards experimental and test report with testing program automatic configuration according to a test conditions key formula, just can provide the multichannel high pressure stable alternating current simultaneously.