The present invention relates to a portable juice making machine which can immediately provide hygienic and clean juice on the spot when a consumer places an order in a vehicle or store. The portable juice making machine comprises: a portable plate (1); a water supply tank (2) seated on an upper surface of the portable plate (1) to store washing water; a raw material washing means (6) including a washing water spray tube (65) through which washing water is sprayed from a washing housing (62) provided on one side of the water supply tank (2) to be inclined upwards by a housing support (622), and a screw (64) for transferring juice raw material upwards; and a juicing means (10) in which the juice raw material is washed by the raw material washing means (6) and fed into a screw housing (20) through a hopper (11) and compressed by a compression screw (12) rotated by a motor (13) to be a juice liquid, and the juice liquid is discharged through a juice discharge tube (14), with leftovers discharged through a leftover outlet (21) of the screw housing (20). The juicing means (10) includes an outlet flange (22) provided outside the leftover outlet (21), and a movable hinge piece (39) and a fixed hinge piece (23) connected to a discharge hole flange (32) of a leftover discharge pressure control means (30) by a connection shaft (40), wherein the outlet flange (22) and the discharge hole flange (32) can be detached by a detachment means (50).;COPYRIGHT KIPO 2020
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