Sanya is a prefecture-level city in Hainan Province, and Haikou is the capital city of Hainan Province. If we compare the comprehensive strength of the city's appearance, educational resources and medical resources, Haikou is definitely stronger than Sanya.

This city has a history of thousands of years since the opening of the Northern Song Dynasty. 1988 Haikou has become the capital of Hainan Province, the economic, technological and cultural center of Hainan Province and the largest transportation hub.