Abstract: The thesis elaborates on the various difficulties and restrictive conditions existing in the course of the merging and cooperation conducted between different colleges and universities.The difficulties of cooperation lie mainly in the methods of thinking,benefits adjustment,structural reorganization and fund guarantee,while the difficulties of merging lie in the teachers' appointment,courses' choice,sharing the libraries and mutual aid in scientific research.The restrictive conditions for merging are the intergrowth of discipline,the concentration of the resources and the geographic adjacency,as well as those for cooperation are the proper position of targets and the right guiding principles.