In the background of the development of the global economical unify and the economic center of China moving to the north, the relationship between the port and hinterland has been changed, which will affect the region economic development in many aspects. On the basis of theoretical research results about the relationships of the port-hinterland at home and abroad, then in accordance with the theory of economic, economic geography, spatial economy, regional economics and landscape ecology, this paper argues that the conditions of the spatial interaction of port-hinterland are natural resources, geographic conditions, economy, policy conditions, the level of the world economic, transport links, infrastructure and near port competition. The rules of evolvement of the interior spatial structure of port-hinterland are ports transition from scattered to concentrate, port city by relying on port into and port detachment, the traffic economic belt in different stages concentration and diffusion mutual growth. There are four space interaction patterns including Taffee model, circle-layer model, point-axis model, life cycle model. Basing on the above analysis, the author believes that the spatial mechanism of port-hinterland system : the appeal of port, the "catchment" functionthe of traffic trunk lines, the export-oriented economic of hinterland, Policy guidance role.After all of this theoretical research, taking Dalian Port-Northeast Hinterland as an example, this paper discuss the spatial interaction of port hinterland system according the frame of―Process-Pattern-Mechanism‖. At present ,the space appears some problems:The port has been cumbered because of infrastructure; The contradictions of Dalian’s harbor city relation are obvious; the phenomenon of spatial deprivation of the traffic economic belt is more and more serious; the northeast hinterland appears space imbalances; the administrative bulwarks cut apart the relationship between Dalian port and Northeast Hinterland.At last, the paper concludes the spatial interaction mechanism of Dalian Port-Northeast Hinterland: The port adsorption of economic elements; Harbin-Dalian Traffic Economic Belt can represent―catchment areas‖through its powerful agglomeration and diffusing effect. the impetus of hinterland export-oriented economy , regional planning and policy linkage affect the development of Dalian Port-Northeast Hinterland. Finally, the measures put forward several suggestions. |