How much to take the fitness instructor's certificate is actually related to your foundation and the examination method you choose. Those who have a foundation can register directly in official website, the State Sports General Administration. If there is no foundation, you need to find a professional training institution to register. Different institutions charge different fees. You need to comprehensively compare the gold content of courses, teachers and certificates, and the price will range from 6000 to 30000. But I suggest learning about the Star Channel.