You can go to the training fitness instructor school to study, and then take the exam organized by the school. If you pass the exam, you can get the fitness instructor qualification certificate. The salary of fitness instructor consists of basic salary+sales commission+class commission (course unit price * class hours * class commission)+bonus. Any industry needs to make corresponding efforts to gain something. If you want to get a high salary, you need to improve your professional level and business ability. Fitness instructor's salary is quite good. We can get the national certificate here, which is a certificate with high recognition in the gym at present.