The utility model relates to a withstand voltage design system applied in an automatic multifunctional detection meter bench. The withstand voltage design system comprises a PC and an error computing control unit, wherein the PC is connected with the error computing control unit and a withstand voltage instrument, a first serial connection switch assembly is connected with a 5 KV isolation control and a 5 KV isolation power supply, the first serial connection switch assembly and the error computing control unit are connected with a first meter to be tested, a crimping motor N is connected with the error computing control unit and a meter N to be tested, the meter N to be tested is connected with the withstand voltage instrument and a second serial connection switch assembly. The withstand voltage design system is beneficial in that: secondary isolation is carried out for the serial connection switch assemblys, the withstand voltage allowance of the system is guaranteed, the withstand voltage requirement on a single element is reduced, the stability and reliability of the system are improved; the meter to be tested is controlled by the crimping motor to move out of a test meter seat, when a withstand voltage failure happens to the meter position in a withstand voltage test; and the number of isolation switch assembly is reduced greatly, the design cost of the system is reduced, the wiring technology of the automatic detection meter bench is simplified, production and maintenance are facilitated, and high detection efficiency is achieved.