Abstract: A platform pricing model in two-sided market under the condition of service differentiation is developed. The services provided by platforms are classified into two categories：matching service and value-added service. A platform can provide differentiated matching service and differentiated value-added service. Then, the pricing, the number of users, and profit of the monopoly platform are analyzed for different services, respectively. The study shows that：1) the monopoly platform can get extra users and profits by offering differentiated service; 2) in order to maximize the profits, the platform should charge less for the low-quality matching service and more for the highquality matching service when providing differentiated matching service; 3) the platform should charge the same for both valueadded services and single value-added service.