The utility model discloses a PET bottle beer production line. The device comprises a conveying belt, a fixing frame, a liquid filling rod, a liquid filling water pump and a gas filling pump, a fixeddisc is fixedly mounted on the conveying belt; a gear shaft is mounted at the lower end of the fixed disc; the fixing frame is arranged above the conveying belt. a positioning rod and a bearing support are respectively mounted on the cross rod; the cleaning pipe and the cross rod penetrate through each other; a rotating motor is installed at the end of the cross rod, a pressurizing water pump is installed on the outer side of one fixing frame, the liquid filling rod is arranged below the other fixing frame, a positioning sleeve and a fixing ring are arranged on the outer side of the liquid inlet pipe, and fixing clamps are fixedly connected to the bottom of the outer side of the positioning sleeve and the bottom of the outer side of the bearing support. According to the PET bottle beer production line, the working efficiency and the filling speed of wine bottle cleaning in PET bottle beer production are improved, meanwhile, the sterilization and cooling speed of wine bottles is increased, residues are reduced, low-temperature sterilization is achieved, and the taste of wine products is good.