Abstract: Based on the characteristics of the urban spatial structure adjustment of Changchun, and contrasting with other vice-province cities, this article analyses the problems existing in the urban spatial structure adjustment of Changchun with the theories about urban economics, urban geography and urban planning, and adopting the practical study way. Referencing the new urban planning of Changchun and the experiences of other regions, this article also gives the countermeasures and suggestions to the ur- ban spatial structure adjustment of Changchun, form the choice of urban space expansion mode, optimizing of area function structural and the advancing of urban regionalization. Key words: urban spatial structure; formation mec hanis m; development strategy; Changchun City