The invention discloses a row gating circuit of an infrared focal plane array. The row gating circuit comprises a row gating control signal generator and two gating switches which are controlled and connected by the row gating control signal generator and positioned at the two ends of each pixel unit (Ps) respectively, and is characterized in that: the 2Kth and the (2K+1)th pixel units in each column of the infrared focal plane array are together connected with the gating switch on one side, while the (2K-1)th and the 2Kth pixel units are together connected with the gating switch on the otherside, wherein K is a natural number; and the row gating circuit further comprises a corresponding reset switch in parallel connection with each pixel unit. The gating switches of the row gating circuit are reduced by multiplexing based on the gating row by row, the non-gated pixel unit can be short-connected during the row gating through the reset switch, and the influence of the parasitic charges on the non-gated pixel unit on the read signal on the gated pixel unit can be eliminated.