Taking hotel staff in Sanya as an example, three basic psychological needs are taken as the intermediary variable to conduct a targeted in-depth study on the impact of internal marketing on service performance of five-star hotels and non-five-star hotels in Sanya. According to the widely used relevant maturity scales, a new scale can be formed for questionnaire survey,which was collected in five-star hotels and other star hotels in Sanya. Finally 358 employees in total are investigated, including five-star hotel has 268 employees, other star hotel has 90 employees.The data use of recycled back SPSS25 and AMOS21 were analyzed.The research results show that the internal marketing of the hotel, three basic psychological needs and service performance has obvious degree of awareness, among the three are positive correlation; International hotel and domestic hotel, there are obvious correlations between the three; There is a positive correlation between autonomy needs, ability needs, ownership needs and all dimensions of five-star hotels, while there is a non-correlation between autonomy needs and service performance dimensions of non-five-star hotels.