The urbanization is accompanying the living beings inevitably of industrialized development. It is a traditional effective carrier in modern industrial civilized society changes of agricultural society. For a long time, the dispute about the urbanization development model of our country has never stopped. It has formed three kinds of main views, namely "key theory in the city", "key theory in the medium-sized city" and "theory of small town". On the basis of reviewing different urbanization development model deeply, this text thinks that the mode selection of urbanization all correlate with economic growth route on deep mechanism, and the external condition has determined different choices of the mode . Three kinds of main views, saying from the essential meaning, in fact choosing the growth pole of region economic growth, achieve the goal of promoting a regional economy development through magnetization, radiation function.The urbanization is the course that a person and person gather. As "economic people '"s individual and enterprise, their final purposes pursue interests to maximize. The course of pursuing the interests is the course of the factor mobility. So the urbanization is that people and enterprise pass the factor mobility, the course of each other's mutual promotion. So, it is keys to urbanization development to adopt any key elements to dispose the way.This text points out the question existing in the urbanization course and reason of these questions of production through analyzing the current situation, characteristic of the urbanization of Gansu. According to the specific economic, social, natural and historical condition, regarding as the visual angle with the key element, proposes the scientific and rational urbanization development model of Gansu, favorable to the urbanization process of Gansu. |