The invention discloses a shield tunnel prefabricated composite segment for construction of a curve pipe shed. The shield tunnel prefabricated composite segment comprises a base body, a reaction steel plate and a cutting body, wherein the base body comprises a plain concrete area and a reinforced concrete area; the reaction steel plate is laid in the plain concrete area, the cutting body is located on the outer surface of the reaction steel plate, and the cutting body, the reaction steel plate and the base body are connected through connecting members; and a drilling hole is formed in a central area of the reaction steel plate, and outward drilling and tunneling of the curve pipe shed are achieved through the drilling hole located in the central area of the steel plate.