Pipe fitting positioning fixture

The invention discloses a pipe fitting positioning fixture. The fixture comprises a fixed seat assembly, a regulating assembly and a positioning block assembly, wherein the fixed seat assembly comprises a tubular regulating shaft sleeve vertically arranged and a round base laid at the bottom of the regulating shaft sleeve; a plurality of U-shaped grooves are uniformly formed in the peripheral lateral surface of the round base; the regulating assembly comprises a regulating vertical bar, a regulating nut and a regulating cross bar; the positioning block assembly comprises a positioning block; the positioning block comprises a connecting plate and a positioning plate positioned at one end of the connecting plate; the other end of the connecting plate is hinged to the regulating cross bar; a V-shaped groove is formed in the top surface of the positioning plate. The pipe fitting positioning fixture has a simple and reasonable structure, is convenient to use, can regulate different heights, transverse extension le