The utility model discloses a seal ring mold of whole board demolding, a plurality of first membrane groove of cope match -plate pattern bottom and the mold core cooperation shape moulding chamber of a plurality of secondary membrane grooves at lower bolster top rather than inside, every first spread groove lie in between adjacent two sets of die cavity and with adjacent die cavity communicate, with man -hour for the strengthening rib that product in a plurality of die cavitys formed in through the spread groove connects into whole, the product whole drawing of patterns from the mold core of being convenient for during the drawing of patterns. Through the seal ring mold of whole board demolding of above -mentioned optimal design, structural design simplifies rationally, connects into whole through the strengthening rib that forms with the product between the die cavity to high pressure heater work efficiency rate is put forward greatly in the product drawing of patterns of being convenient for.