An automatic flow adjusting spray pipe type inflow control device comprises a base pipe, an upper sleeve, a lower sleeve, a movable spray pipe and a spring, wherein the base pipe, the upper sleeve, the lower sleeve, the movable spray pipe and the spring are connected. According to the device, the grade of flow resistance can be adjusted automatically according to the rate of flow, influences of the end effect and reservoir anisotropy are counteracted, inflow section is even along a horizontal wellbore, air water coning is reduced, and the yield of an oil well is increased.