1. First, it is clear that they are in six areas: movement, perception, cognition, language interaction, self-care and social adaptation.

2. Secondly, individual training plan Because there are significant individual differences among children with mental retardation, each child with mental retardation has different development in the above six aspects and has his own special needs, so it is necessary to formulate individual training plan for each child to guide the rehabilitation training process.

3. Finally, formulate long-term goals and short-term goals: We describe the contents of six areas as long-term goals and short-term goals of rehabilitation training, and get the long-term goals to meet the rehabilitation needs of each child through the evaluation of children, and then find out the relevant short-term goals from rehabilitation training activities.