A frontal sinus rongeur comprises a fixed handle, a movable handle, a push rod, a connection rod, a handle fixing pin, a movable tong head, a fixed tong head and a tong head fixing pin, wherein the fixed handle and the movable hand are connected in a rotating mode through the handle fixing pin, a handle groove hole is formed in the movable handle, a push rod moving pin is arranged in the handle groove hole in a matched mode, the push rod moving pin is arranged at the rear end of the push rod, the push rod is arranged in a groove-shaped sliding rail on the left side of the connection rod, the rear end of the connection rod is fixedly connected at the front end of the fixed handle, the front end of the connection rod is fixedly connected with the fixed tong head, the tong head moving pin is arranged at the front end of the push rod, the tong head moving pin is arranged in a tong head groove hole formed in the movable tong head in a matched mode, the movable tong head and the fixed tong head are connected in a rotating mode through the tong head fixing pin, the movable handle can be opened and closed vertically, and the fixed handle can be opened and closed horizontally. The frontal sinus rongeur can gradually crunch sclerotin attached to the upper end of the processus uncinatus under the monitoring of a nasal endoscope, is good in controllability and is not prone to damaging mucosal tissues at the recess position.