Water injection system is a large production system of oil field, this system works not only in vast area, but also in complex working conditions with great energy consumption. Since the Ninth Five-year Plan period, under the concept of national advocate with energy conservation, emissions reduction and low carbon environmental protection. The process of simulation, optimization and energy conservation of water injection system has been the focused problem of oil sector. This article based on the existing oil field water injecting simulation system, combining the virtual reality technology with water injecting system simulation technology, analyzing and researching with 3D display and virtual interaction of water flooding simulation system as a starting point, designed and excogitated a complete set of oil field water injection virtual-reality simulation system in order to assist production management of on-site technical personnel.