City infrastructure is to ensure the normal operation of the facilities；the coordinated development of infrastructure is a prerequisite to promote the integration of the urban agglomeration in the middle reaches of the Yangtze River.Firstly，this paper analyzes the status quo of the infrastructure of the urban agglomeration in the middle reaches of the Yangtze River from four aspects：transportation，water conservancy，energy and information. Thenaccording to the connotation of infrastructure collaborative development capacity structure，build the urban agglomeration in the middle reaches of the Yangtze River infrastructure collaborative development index system from the transportation，water conservancy facilities，energy security，information facilities development level. Using the ability structure model，measure the infrastructure development ability structure of the urban agglomeration in the middle reaches of the Yangtze River in 2010-2016；reveal the equilibrium and matching degree of infrastructure development capacity among different cities from the dimensions of spatial and temporal.On this basis，analysis of the relative change trend and temporal-spatial correlation of benefit effect of infrastructure collaborative development among different cities. The results show that：（1）During the study period，the infrastructure of collaborative development index ranked in the top ten of the city is Wuhan，Changsha，Nanchang，Hengyang，Xiangyang，Yueyang，Zhuzhou，Shangrao，Xiangtan and Changde，the city in the middle reaches of the Yangtze River city group ranking changes little.（2）Wuhan as the core of the benefit of infrastructure synergy development in the middle reaches of the Yangtze River city group，Symmetrical distribution of axis along Wuhan to Changsha，Zhuzhou and Xiangtan. The benefit degree of infrastructure synergy development between Wuhan and Changsha Zhuzhou Xiangtan Urban Agglomeration is better than that of Wuhan metropolitan area.（3）The ability structure of infrastructure collaborative development is stronger and the higher of the sustainable development ability in the middle reaches of the Yangtze River city group，the greater the probability of collaborative development of infrastructure between cities and the corresponding cities have greater benefits in the collaborative development of infrastructure.（4）The coordinated development of infrastructure between cities in the middle reaches of the Yangtze River city group is not constrained by the friction effect of the space，the proximity of the spatial advantage is not significant in promoting the coordinated development of infrastructure. The city which has the same order of magnitude infrastructure development and in the national trunk line，both sides gain greater degree of benefit from its infrastructure cooperation.