The invention discloses an extruding machine head. The extruding machine head is provided with a feeding hole (A), discharging holes (B) and material flow runners located between the feeding hole and the discharging holes, wherein additive insertion holes (C) and additive adding pipes (1) are also arranged on the extruding machine head, the additive adding pipes (1) are inserted into the material flow runners through the additive insertion holes (C), and the material flow runners are in tree diagram distribution preferentially to enable the flow between each discharging hole (B) and the feeding hole (A) to be same, so that the extruding quantity of all the discharging holes can be controlled. According to the extruding machine head, the additive insertion holes and the additive adding pipes are additionally arranged on the machine head, and the additive adding pipes are inserted into the material flow runners through the additive insertion holes, so that the additives and the molten polymer material flows are extruded in a composite manner, and the dispersing and mixing effects of the additives are improved.