According to the characteristics of oilfield fracturing wastewater, a series of new technologies were developed for decentralized industrial wastewater treatment and reclamation, such as crystallization-coagulation, organic chromophore chemical conversion and complexing for dissolved organic removal, and pelleting coagulation for high concentration suspended solids removal. A series of high efficiency coagulants and coagulation-aids were manufactured to assist the coagulation processes. According to the purposes of treatment and water reuse, various unit processes were integrated to combine physical, chemical, physiochemical, and biochemical functions in one treatment system. The integrated technology was applied in 40 engineering projects and the direct economic benefits amounted to more than 600 million RMB.