The utility model relates to a mud grouting float collar float shoe for oil well cementation. The mud grouting float collar float shoe comprises a float collar and a float shoe, wherein the float collar comprises a barrel body, a flow guide pipe body is mounted at the upper part of the barrel body, the float shoe is fixedly mounted in the flow guide pipe body, and a concrete connecting layer is arranged between the inner wall of the barrel body and the flow guide pipe body; a spring base is arranged in the float shoe body, and a spring is arranged above the spring base; a float ball seat is mounted at the lower part of the float shoe, a fixing frame is fixedly connected to the inner wall of the barrel body at the lower part of a float ball basket, and a float barrel seat is mounted in the middle of the fixing frame; symmetric clamping jaws are arranged on the top surface of the piston of the float barrel seat; an upper circulating through hole and a lower circulating through hole are formed in a float shoe body. The mud grouting float collar float shoe is reasonable in design, simple in structure, convenient to use and reliable in working; by the mud grouting float collar float shoe, the sealing instantaneity and reliability can be improved in an oil well cementation operation process, instant sealing can be performed, the purpose of not reserving a cement plug at the bottom of a well after well cementation can be achieved, and the delay of operation time and the potential safety hazard caused by returning of cement paste can be avoided.