It's not easy. To take the swimming instructor's certificate, you must first have a swimming lifeguard's certificate, and you can only rely on the swimming instructor's certificate in the second year. The swimming coach trains the staff who say that the applicant is healthy 18-55 years old, and prepares to be a social worker in related industries. When registering, you must take the swimming skill test (lifeguards: men swim 25 meters in 20 seconds, women dive 22 seconds and 20 meters; Teacher: 50m breaststroke +50m freestyle or backstroke, within 0/25s for men and 0/50s for women). To apply for a swimming teacher, you must hold a lifeguard professional qualification certificate or a swimmer's certificate above the second level. Employees with non-national vocational qualification certificates can sign up for this training to replace the national vocational qualification certificate (old certificate for new certificate). The examination is divided into theoretical examination and technical examination. The theoretical examination is about swimming skills, life-saving knowledge, action essentials and emergency handling methods; Technical examination is a real battle in water. You have to go to a regular institution to take the training exam for swimming coaches. The annual registration of swimming teacher's professional qualification certificate (see regional regulations for details) is still difficult to obtain swimming coach's qualification certificate, which is a rigid requirement for swimming coach recruitment.