Abstract
Under the post Ford flexible production organization system, the existence of specialized division of labor has made the forward and backward connections between the producer services as an intermediate input and the manufacturing increasingly close. With the proposal of the "Belt and Road" and the deepening of "The development of the western region in China", the northwest region plays an increasingly important role in China's regional development strategy, and the economic transformation, especially the transformation and upgrading of the manufacturing, and it is crucial to its completion of the strategic mission entrusted by the state. Taking Lanzhou City as a case area, based on the measurement of the cooperative development level of producer services and manufacturing, this paper explores the internal law of the synergetic development of producer services and manufacturing in the northwest inland central city. The study found: The overall synergy development level of producer services and manufacturing in Lanzhou has been significantly improved in the dynamic evolution process, and two industries are in the transition stage from the primary coordinated development to the intermediate coordinated development at present. The spatial layout of producer services and manufacturing in Lanzhou City has certain spatial proximity, and the overall presents a "center-periphery" spatial pattern with the main urban area as the main component. From the perspective of the synergistic development of producer services and manufacturing in Lanzhou, the two industries have initially formed an interactive relationship of two-way promotion at present, but there is a significant asymmetry in the two-way promoting effect of the two industries.