Harbin-Qiqihar high-speed railway is an important part of the transport system in HarbinDaqing-Qiqihar industrial corridor, and has a profound impact on regional linkage and spatial reorganization. This paper selects the accessibility model to measure the impact regional accessibility level of the opening of Harbin-Qiqihar high-speed railway. Then, according to the distance gravity model to measure the economic link intensity between cities, by using the economic membership, this paper analyzes the economic...