The invention relates to a thermal insulation non-slip reinforcement type flat welding flanged pipe fitting. The thermal insulation non-slip reinforcement type flat welding flanged pipe fitting comprises a base plate (1) and a pipe body (2). Both the cross section of the base plate (1) and the cross section of the pipe body (2) are in circular ring shapes. A non-slip layer is arranged on the surface of the base plate (1). Internal threads (2.1) are arranged on the inner diameter of the pipe body (2), a thermal insulation layer is arranged on the outer surface of the pipe body (2), a reinforcing rib (4) is arranged on the outer wall of the pipe body (2), and a flange (3) is arranged at the top end of the outer wall of the pipe body (2). The thermal insulation non-slip reinforcement type flat welding flanged pipe fitting enables connection between facilities and connection between pipe bodies to be firmer, the bearing capacity is higher, the service life is prolonged, it is easier to assemble or maintain, the flanged pipe fitting is not prone to slipping off from the hand, the temperature in the pipe body is guaranteed properly, heat is not easy to dissipating, and the service life of the thermal insulation non-slip reinforcement type flat welding flanged pipe fitting is prolonged.