According to the time limit, training can be divided into long-term training and short-term training. Long-term training is generally planned and purposeful. According to the training methods, it can be divided into on-the-job training and off-job training. According to the training system, it can be divided into internal training system and external training system. The internal training system includes basic training, applicability training, daily training, personal training and target training. If the training system outside the organization is divided by educational institutions, it can be divided into three categories: ① full-time colleges and adult colleges; ② Education and training institutions organized by local governments and administrative departments; ③ Social forces run schools.