Side opening automobile door of automobile

The invention provides a side opening automobile door of an automobile, and belongs to the automotive technical field. The side opening automobile door of the automobile solves the problems that an existing inner space of the automobile is small, a driver feels uncomfortable in the automobile and the like. The side opening automobile door of the automobile comprises a laminar door body, wherein a fixing frame of frame structure is arranged on the upper portion of the door body, automobile window glass is fixedly connected with the fixing frame, an elbow hole penetrates through the middle of the door body, a side opening door which can open and close the elbow hole is hinged with the elbow hole, and a cavity which can contain an elbow of the driver is formed between the elbow hole and the side opening door. The side opening automobile door of the automobile has the advantages of expanding the inner space of the automobile, and being reasonable in design, easy to assemble, strong in practicability and the like.