Disclosed are a motor accommodation structural body, an automobile including the motor accommodation structural body, and a method for manufacturing the motor accommodation structural body. According to one aspect of the present disclosure, disclosed is a motor accommodation structural body for accommodating a motor for an automobile, the motor accommodation structural body including: a housing having an empty space formed therein; a guide unit which is provided on an outer surface of the housing, has a shape protruding outward, and extends along a longitudinal direction L of the housing; and a fixing bracket unit having a coupling portion which has one side coupled to the guide unit and the other side coupled to the automobile.