Auxiliary fuel tank of tractor

The utility model relates to the technical field of tractor accessories, and discloses a tractor auxiliary fuel tank which comprises a fixing assembly connected with a tractor frame and a fuel tank body installed on the fixing assembly, and the fuel tank body comprises a cylinder, end plates fixed to the two ends of the cylinder and a partition plate installed in the cylinder. The two ends of the barrel are sealed by the two end plates to form an oil storage cavity, the cross section of the barrel is rectangular, chamfers are arranged at the corner angles of the barrel, concave bent edges are arranged on the side wall of the barrel and are arranged in the axial direction of the barrel, and an oil inlet communicated with the oil storage cavity is formed in the top of the barrel. An oil outlet assembly connected with an oil inlet pipe of an external tractor is arranged at the bottom of the barrel; according to the utility model, the structural strength of the cylinder body can be further improved, so that the o