A high pressure fuel pump comprising: a body formed at one side thereof with a suction hole into which a fuel is supplied from a fuel bombe; a pressurizing device coupled to the body to form a high pressure portion such that a part of the fuel is pressurized in the high pressure portion; a discharge hole for discharging the part of the fuel pressurized by the pressurizing device; and a recovery hole for delivering a residual fuel, except for the part of the fuel pressurized by the pressurizing device, introduced through the suction hole to a fuel recovery line connected to the fuel bombe, wherein the body comprises: a low pressure portion serving as a movement path formed in the body to deliver the residual fuel from the suction hole to the recovery hole; characterized in that the body further comprising a micro-pipe portion including a micro pipe having a diameter allowing a gaseous fuel in the high pressure portion to pass therethrough while blocking a high pressure liquid fuel in the high pressure portion, and formed between the high pressure portion and the low pressure portion for discharging the gaseous fuel in the high pressure portion to the low pressure portion, and the diameter of the micro pipe is determined according to pressure generated by the pressurizing device, pressure of the low pressure portion, and a length of the micro pipe. a body formed at one side thereof with a suction hole into which a fuel is supplied from a fuel bombe; a pressurizing device coupled to the body to form a high pressure portion such that a part of the fuel is pressurized in the high pressure portion; a discharge hole for discharging the part of the fuel pressurized by the pressurizing device; and a recovery hole for delivering a residual fuel, except for the part of the fuel pressurized by the pressurizing device, introduced through the suction hole to a fuel recovery line connected to the fuel bombe, wherein the body comprises: a low pressure portion serving as a movement path formed in the body to deliver the residual fuel from the suction hole to the recovery hole; characterized in that the body further comprising a micro-pipe portion including a micro pipe having a diameter allowing a gaseous fuel in the high pressure portion to pass therethrough while blocking a high pressure liquid fuel in the high pressure portion, and formed between the high pressure portion and the low pressure portion for discharging the gaseous fuel in the high pressure portion to the low pressure portion, and the diameter of the micro pipe is determined according to pressure generated by the pressurizing device, pressure of the low pressure portion, and a length of the micro pipe. a low pressure portion serving as a movement path formed in the body to deliver the residual fuel from the suction hole to the recovery hole; characterized in that the body further comprising a micro-pipe portion including a micro pipe having a diameter allowing a gaseous fuel in the high pressure portion to pass therethrough while blocking a high pressure liquid fuel in the high pressure portion, and formed between the high pressure portion and the low pressure portion for discharging the gaseous fuel in the high pressure portion to the low pressure portion, and the diameter of the micro pipe is determined according to pressure generated by the pressurizing device, pressure of the low pressure portion, and a length of the micro pipe.