Recently, more and more ride-hailing platforms are aggregated into one platform. How to respond the strategic switch for ride-hailing platforms under aggregation mode is an important issue. Considering a comprehensive ride-hailing platform, a platform could provide both premium and standard service, this paper studies the optimal service strategy for the comprehensive ride-hailing platform, and examines the effects of different service strategies on the all platforms’ pricing and profits. By comparing the equilibrium outcomes in the two decision scenarios, it is found that when the competition between the comprehensive ride-hailing platform and the general ride-hailing platform is weak and the service cost is low, the comprehensive platform will adopt premium service strategy, and it will forgo the standard service when the competition becomes fierce. Then, when the consumers’ acceptance degree of general ride-hailing platform is low, premium service strategy will hurt general platform; with the consumers’ acceptance degree increases, the general platform will benefit from premium service. As for the aggregation platform, it can obtain higher profit from standard service. This result shows that the win-win situation might occur in the standard service strategy. This paper innovatively studies the ride-hailing platforms’ service strategy, and obtains that even two competing platforms can achieve win-win situation under aggregation mode. These conclusions provide a good theoretical and practical guide for the cooperation between the traditional ride-hailing platform and aggregation platform.