The invention discloses an electronic detection board card for a computer. The electronic detection board card comprises a power supply circuit, a time base integrated circuit, a calculator chip circuit, a detection interface circuit and a fault display circuit; the power supply circuit is connected with the time base integrated circuit, the calculator chip circuit and the fault display circuit simultaneously, the signal output end of the time base integrated circuit is connected with the signal input end of the calculator chip circuit, and the output end of the calculator chip circuit is connected with the signal input end of the fault display circuit through the detection interface circuit. Compared with the prior art, according to the electronic detection board card for the computer, by means of assembling of electronic components, connection and disconnection detection can be rapidly conducted on circuits inside the computer, flexible flat cables and other circuits, fault positions can be rapidly judged during the maintenance process, the work efficiency is improved, use is convenient, and application and promotion value is achieved.