The invention relates to an oil pipe cutter. The oil pipe cutter is characterized in that the oil pipe cutter comprises a cutter body, wherein the cuter body is formed by extending a cutter root (3) to a cutter blade (1) through a cutter face (2), an installation hole (4) is formed in the center of the cutter body, the cutter face (2) is a full circle, and the thickness of the cutter face (2) is gradually increased from the cutter blade (1) to the cutter root (3). The oil pipe cutter has the advantages of being capable of resisting clamping, preventing break, and resisting shock, incisions of oil pipes are neat, chips are absent during cutting processes, and use requirements for cutting oil pipes on site can be met.