Abstract: According to the new urbanization plan,medium and small cities will become the important space carrier to solve the problem of Chinese urbanization. Under the system background that medium and small cities have no restrict in settlement policy,the willingness of semi-city people settling in medium and small cities becomes the decisive factor whether medium and small cities can become the carrier of residents. In order to explore willingness and influencing mechanism of semi-city people settling in medium and small cities,this paper takes the demonstration area of urban and rural outskirts-Chengdu suburb,Sichuan Province,China,as an example and firstly selected nineteen factors on four aspects including demographic features,economy,society and family,and asset,as the main measures to investigate the willingness of semi-city people settling in medium and small cities. Secondly,through questionnaire survey and typical sample interview,original data were obtained. Results show that the overall willingness is low,of which about 34.9% of semi-city people are willing to settle in medium and small cities,while 65.1% are not. Thirdly,through the chi square test,this paper verified factors associated with this willingness from a single factor perspective. Study finds that seven factors including education level,income,enrollment of children,urban-resident identity,fields processing,old house treatment and ways of housing are significantly related to the willingness of semi-city people settling in medium and small cities. Finally these seven factors were analyzed with Logistic regression,and results show that under the common action of many factors,field processing,old house treatment,ways of housing and enrollment of children are the four most significant factors,after which this paper had a deep interpretation about these four factors. Overall,influencing factors of semi-city people settling in medium and small cities contain assets factors and needs of their children's education,of which care of rural assets and insufficient capacity of commodity housing in medium and small cities are major constraint to the settling intention,while the educational needs of children is an important contributing factor to the settling intention. Based on these findings,the paper puts forward some policy suggestions for improving semi-city people's willingness and their ability in settling in medium and small cities. Based on the national policy,this study tries to provide theory support for increasing household urbanization rate,and propose suggestions which have certain practical value and times significance.

Key words: semi-city people, settled willingness, medium and small cities, Chengdu