Technical hinge for passenger door

The utility model discloses a technical hinge for a passenger door. The technical hinge comprises an upper hinge, a lower hinge, a rotating mechanism, a passenger door fastening device and a framework fastening device, wherein the upper hinge is rotationally connected with the lower hinge through the rotating mechanism; the framework fastening device is arranged on the upper hinge; and the passenger door fastening device is arranged on the lower hinge. The passenger door can be rotationally connected to a framework of a vehicle body; due to the adoption of the hinge structure, high temperature can be borne, the technical hinge is not affected and does not need to be detached during the baking finish of the vehicle body. The hinge is convenient to use, manpower and material resources are saved, the preparation time for production is greatly shortened, and the production efficiency is improved; and meanwhile, great convenience is brought to pattern construction in the paint spraying process in a coating section