Fractured tight reservoirs are affected by poor matrix properties and fracture development, after water-flooding, the effect of oil well varies greatly. The effect of oil well on fracture line is quick and water cut rises quickly. The effect of oil well on fracture side is poor or not effective. Formation energy is kept low, fluid production capacity is low, stable production foundation is weak. Based on the analysis of the adjustment effect and the factors affecting production-injection wells ratio after the reverse nine-point well pattern is converted into a linear injection pattern in fractured tight reservoirs, combined with numerical simulation results, carry out adjustment of injection and production system, reduce the ratio of production-injection wells, increase injection well point, matching perfect injection-production correspondence and profile management, forming a pattern such as “more water injection point and less water amount, point weak and plane equal”, which makes water drive more balanced, the technical model of injection-production system adjustment for fractured tight reservoirs will be established, and will guide the efficient development of similar reservoirs.