The invention relates to an inflation-deflation valve seat with an adjustable flow rate. The inflating and deflating valve seat comprises two valve seats and a communicating valve, wherein each valveseat is connected with an air pump respectively, and comprises an inflation valve group, a deflation valve, and an air passage which is communicated with the air pump, the inflation valve group and the deflation valve; the communicating valve is connected between the two valve seats, so that the two valve seats can be in a disconnected state and a connected state; when two air passages are in thedisconnected state, the two valve seats are in a low-flow inflation state and a low-flow deflation state; when the two air passages are in the connected state, the two valve groups are in a high-flowinflation state and a high-flow deflation state.