The goals of cost reduction and efficiency increase in the oil and gas industry，the demands for environment protection development，and the rapid development of integrated geological engineering technology have posed new challenges and requirements for wellbore working fluids. After working fluids contact with the formation during the fracturing process，a series of physical or chemical reactions occur. It not only affects the effectiveness of hydraulic fracturing，but also closely relates to the process of shut-in and flowback after fracturing，thereby affecting the subsequent production of oil and gas wells. In addition，the different working fluid systems also face some problems such as homogenization waste，functional singularity and physicochemical incompatibility. Therefore，clarifying the required characteristics and research status of the working fluids at each stage is of great significance for the development of integrated working fluids. Based on this，the characteristics that the working fluid needed to meet and current results in various stages such as fracturing，shut-in and flowback were elaborated. The characteristics and research status for polymer，surfactant，foam and gas working fluids were emphatically described. By summarizing the characteristics of working fluids mentioned above，the discussion and outlook on integrated working fluids were conducted around three aspects， such as synergistic effect of fracturing and extraction，improvement of liquid energy efficiency through temporary plugging of fracturing，and low-carbon and green transformation. The integrated working fluid involved a broad range of researches and techniques. It was necessary to strengthen the collaborative studies between multiple processes. The research results could provide a reference for the development and enhancement of integrated working fluids during fracturing，shut-in and flowback.