The invention discloses an improved automobile sealing strip extruding machine head and a forming mold. One end of the extruding machine head is connected with the forming mold through a core rod, wherein the core rod and the forming mold are combined into a whole; a machine head core rod body and a core rod correcting cylinder are arranged inside the extruding machine head, wherein the machine head core rod body and the core rod are of a separated structure, and the machine head core rod body, the core rod correcting cylinder and the core rod are connected with one another in a matched mode;and the forming mold is composed of five molds, namely a first mold, a second mold, a third mold, a fourth mold and a fifth mold arranged sequentially from left to right, wherein a rubber channel anda steel strip core material hole are formed in each mold, and the outer side of the forming mold is further connected with a knurling roller. According to the improved automobile sealing strip extruding machine head, an EPDM dense rubber material, an EPDM sponge rubber material and a steel strip core material are separated before being formed, so that the forming state of a sealing strip is convenient to adjust, so that surface patterns of the sealing strip is ensured to be uniform and attractive.