China has made great efforts to enact and implement the special employment support policy to improve the employment of the disabled, but it does not achieve remarkable effects. The research analyzes the institutional plights when the employment support policy of the disabled is formulated and implemented in light of embedability of the economic sociology; it mainly discusses the institutional factors related to policy working. The research finds that the significant variables affecting policy working are the welfare value orientation of the disabled at the lower level of the nation, and the employment support policy tool of the disabled are relatively isolated from the broad system background, politics-oriented policy tools and discrete policy community. To support the employment of the disabled, the government is required to further enhance the welfare of the disabled, pay attention to the interaction and cooperation between the preferential system and the generalized system of preferences of the disabled when designing the top-level system, so as to gather the strength of all the parties to stimulate the responsibilities and the duties of diverse subjects in policy community.