Legal analysis: illegal. It should be clear that this kind of compulsory training that takes up employees' rest time is unreasonable and illegal. Employers take up employees' rest time and carry out compulsory training. According to the provisions of relevant national laws and regulations, it should be overtime, and the company should pay workers overtime pay reasonably.

Legal basis: People's Republic of China (PRC) Labor Law.

Article 41 The employing unit may, due to the needs of production and operation, extend the working hours after consultation with the trade unions and laborers, which shall generally not exceed one hour per day; If it is necessary to extend the working hours for special reasons, the extended working hours shall not exceed three hours a day and thirty-six hours a month under the condition of ensuring the health of the workers.

Article 44 Under any of the following circumstances, the employing unit shall pay the wages higher than the wages of the workers during their normal working hours according to the following standards: (1) If the workers are arranged to extend their working hours, they shall pay the wages not less than 150% of the wages; (2) If workers are arranged to work on rest days but cannot be arranged for compensatory time off, they shall be paid a salary of not less than 200% of their wages; (3) If workers are arranged to work on legal holidays, they shall be paid no less than 300% of their wages.