The function demand of the test platform for electric vehicle controller was analyzed.A design scheme of the test platform for electric vehicle controller was proposed based on virtual instrument technology.The constitute and the selection principle of the hardware for the detection platform were briefly discussed.The software realization of the electric vehicle controller detection platform based on LabVIEW was introduced in detail.Practical application shows that the test system can be used to carry out accurate and efficient function test for the electric vehicle controller;during the testing process,the detection data can be intuitively presented to the operator and stored real-time;the test system has open step edit function,satisfying the test product type change requirement.