The invention relates to the field of food processing machines, in particular to a kudzu vine root juice squeezer comprising a squeezing mechanism, a feed hopper, a juice collection tank and a discharging opening. The squeezer is characterized in that the squeezing mechanism comprises a screen drum and a squeezing spiral rod, the squeezing spiral rod is axially installed in the screen drum, screen holes are evenly formed in the lower drum face of the screen drum, the pitch of the squeezing spiral rod is gradually reduced from the front end to the rear end, and the axis diameter of the squeezing spiral rod is gradually increased from the front end to the rear end, the juice collection tank is arranged below the screen drum, the feed hopper is arranged on the axial front side of the screen drum, and the discharging opening is formed in the axial rear side of the screen drum. The kudzu vine root juice squeezer has the advantages of being high in juicing efficiency, little in waste and good in quality.