The invention provides an automatic detection instrument for the technical performance index of wireless communication equipment. The automatic detection instrument comprises a central processing unit, an integral service unit, a power supply module element, a casing component, a front panel component and a back cover plate component, wherein the casing component is an aluminum alloy sheet rib part in a U shape, the bottom of the casing component is sequentially provided with the power supply module element, the integral service unit and the central processing unit front the left side to the right side, the front panel component is arranged in front of the casing component, the back cover plate component is arranged behind the casing component, and the parts are combined for forming a modularized structural whole. System software mainly comprises three levels: a user interface level, a function logic level and a module control/driving layer, the open type software framework structure is adopted, and good expandability, maintenance performance and reliability are realized. The integral hardware adopts a central processor as a core, the unit type modularized optimization design is developed, and the automatic detection instrument has the characteristics that the circuit design parameters are reasonable, the integral layout is clear, the performance is stable and reliable, the work frequency band range is wide, the detection parameters are more, the operation is simple and convenient, the work efficiency is high, the electromagnetic compatibility is good, and the like.