Petroleum well testing equipment

The utility model provides petroleum well testing equipment which comprises a fixing part used for installing a well testing assembly, the fixing part comprises a clamping assembly and an anti-falling assembly, the anti-falling assembly comprises a base, a sliding plate is movably connected to the inner wall of a sliding groove formed in the surface of the base, and a supporting arm is welded to the bottom of the sliding plate; the sliding frame is movably connected to the outer wall of the supporting arm, and a vertical rod is welded to the inner wall of the bottom of the sliding frame; and the supporting disc is connected to the circumferential outer wall of the vertical rod in a sleeving manner. According to the utility model, through the arrangement of the arc-shaped holes, the turntable can drive the plurality of groups of limiting heads and the sliding plates to slide along the sliding grooves in the base in the rotating process, so that the plurality of clamping columns can clamp and fix an instrument