Abstract: The coordinated development between port logistics and the hinterland economy is an objective requirement of regional economic and social development. This paper gives a compound information empowerment method to calculate the weight of the index, and establishes an evaluation model of the synergistic development of port logistics and hinterland economy based on weighted composite information. Based on the sample data from 2006 to 2016, an empirical analysis of the synergism of Tangshan port and hinterland economy is carried out. The results of the study showed that the degree of orderliness of the various subsystems of the port logistics and hinterland economy and the comprehensive synergy have continued to increase, and the improvement of comprehensive synergy depends on a common increase in the orderliness of the various subsystems. Finally, from the policy support, port fixed assets investment,hinterland economic development, logistics information constructionand other aspects, we put forward suggestions for promoting coordinated development of port logistics and hinterland economy.

Key words: port logistics, hinterland economy, compound information empowerment, level of collaboration