⭘ With the accelerated pace of urbanization in China, the traditional sewage treatment facilities in the heart of the city have gradually been surrounded by new buildings and green space, evolving into a "plant in the city". Coupled with land resource constraints, the new water purification plants also have to be laid out in the inner city. Water purification plants inevitably penetrate into the urban community, in the space and public life more closely linked to the traditional single production function of the water purification plant construction model has been unable to match the current economic development model, water purification plant composite utilization design has become one of the solutions to the contradiction, but often too much attention to the economic value of the development process, while ignoring the need to play the urban attributes. Therefore, under the premise of meeting the production and safety, water purification plant how to integrate and optimize the space and function, improve space utilization, according to local conditions to maximize the spatial benefits of the "neighbor avoidance" into "neighbor friendly", to create a rich and varied spatial environment is Nowadays, the composite utilization of water purification plant must face the problem. 

⭘ The research starts from the development mode of Shenzhen water purification plant, analyzes the background of the era in which it is located, the international environment and its own future development orientation, sums up its composite use of development motives and construction mode, and accordingly analyzes and elaborates on the solution to the contradiction of urban development, the necessity of the composite use of water purification plant assessment, thus clearly put forward the composite use of water purification plant assessment of this proposition.