1. Establish rules: First of all, parents and teachers need to establish some rules about using mobile phones with students, such as not using mobile phones during study hours and one hour before going to bed at night.

2. Provide alternative activities: Encourage students to participate in outdoor activities and social activities, such as sports and club activities, so that students can have more time to do other meaningful things instead of indulging in mobile phones.

3. Educate students about its hazards: let students know about the hazards of excessive use of mobile phones, including the impact on eyesight, study and interpersonal relationships.

4. Limit the time of use: For high school students, the time of using mobile phones every day should be controlled within a certain range, for example, no more than 2 hours a day.

5. Parental supervision: Parents need to check their children's mobile phone usage regularly, and intervene in time if they find that their children use their mobile phones excessively.

6. School guidance: Schools can also guide students to use mobile phones correctly by holding some lectures or activities on the use of mobile phones.

7. Cultivate self-control ability: educate students to learn self-control and understand that there are many more important things in life than playing mobile phones.

8. Formulate a reward and punishment system: students who abide by the regulations and are not addicted to mobile phones can be given certain rewards, otherwise they will be punished appropriately.