This paper describes the unbalanced mechanism of disabled labor market from the perspective of supply and demand matching. There are two stages which significantly compose supply and demand, shown as base layer and communication layer. The base layer is the premise of both supply side and demand side to participate in market communication, mainly determined by subjective factors. Moreover, the object of the communication layer is the output of the base layer. Through the interflow of supply and demand, the total aggregate matching is generated. At present, the matching problem in disabled labor market is mainly focused on the base layer, causing severe shrink of communicating quantity in communication layer. Due to the above reasons, the finally total amount matching is extremely small. To improve the employment situation, the macro policy should pay great attention to the role of the base layer, and then promote the infrastructure construction constantly.