Need a certain physical quality. To obtain the security guard certificate, you must pass the training and examination of security training institutions, and the students recruited by security training institutions must be between 18 and 50 years old. Because security guards are usually full of people 24 hours a day, security guards will work in three shifts. If they are in poor health, they can't bear such work intensity. At the same time, you need to have a certain language and writing skills. Have the ability to observe, find and deal with problems corresponding to job responsibilities.