The invention discloses an electromechanical BIM (Building Information Modeling) two-dimensional and three-dimensional integrated assembly type automatic universal family manufacturing method, which comprises the following steps that S1, project requirements are analyzed to determine family building standards and universal ranges of families; S2, component splitting analysis is carried out, a to-be-built single family is split into an entity three-dimensional subfamily, a virtual three-dimensional subfamily and a two-dimensional information subfamily according to family function attributes, and the entity three-dimensional subfamily, the virtual three-dimensional subfamily and the two-dimensional information subfamily are split into subfamily components; S3, overall analysis is conducted on the universality of the family, and a subfamily, a subfamily component or a component combination capable of serving as a universal body is planned; s4, equipment-level assembly is conducted, specifically, an automatic design method is adopted, all sub-family components are established respectively, and a universal body and a single equipment family are assembled; and S5, system-level assembly is carried out, wherein all the single families are assembled to form a system-level equipment combination family. According to the method, two-dimensional and three-dimensional integrated applicationis convenient, and the universalization degree is high.