The invention discloses a prefabricated fabricated type structure of an external wall, and relates to the field of constructional engineering. The prefabricated fabricated type structure of the external wall is composed of a thermal insulating composite wall standard piece and an auxiliary structure; the thermal insulating composite wall standard piece comprises a prefabricated type external wallload-bearing wall standard piece, a prefabricated type external wall non-bearing wall standard piece and a prefabricated type external wall load-bearing wall internal and external corner standard piece; and the prefabricated type external wall load-bearing wall standard piece is provided with an assembly type oppositely-pulling rod which is used for positioning and installing of a load-bearing wall construction formwork. According to the prefabricated fabricated type structure of the external wall, the structure is simple, economical and reasonable, the technology is advanced, using is convenient, and the prefabricated fabricated type structure is the best construction method of a composite wall structure and has good popularizing value.