The invention provides a total power testing platform for a frequency converter for use in wind power generation. A doubly-fed asynchronous motor and a permanent magnet synchronous motor of a test bed can be dragged by each other, so that the total power testing work of all types of frequency converters in the conventional wind power generation field can be covered. According to the platform, a plurality of frequency converters can be tested, testing of total power high current of different types of frequency converters is realized, so that the performance of the frequency converters is tested fully, and the reliability of the product is improved; a looped network design is adopted in the test bed, so that the energy consumption of testing and the running cost of the test bed are reduced simultaneously during testing; the total power testing platform has the advantages of simple structure, convenience in operation, low processing cost and the like.