The invention relates to the field of beverage bottles, in particular to a beverage plastic bottle. The beverage plastic bottle comprises a beverage bottle main body, a bottle opening is formed in the upper end of the beverage bottle main body, a fixing ring is arranged at the upper end of the bottle opening, two flow control devices are movably connected into the fixing ring and comprise outer rings, inner rings are arranged inside the outer rings, clamping grooves are formed between the outer rings and the inner rings, seasoning belts are arranged inside the inner rings, screw rods are connected to the outer sides of the outer rings, bottle caps are arranged inside the clamping grooves, cap lock devices are connected to the surfaces of the bottle caps and comprise transverse blocks, one ends of the transverse blocks are rotationally connected to vertical blocks, an end columns are arranged on the surfaces of the fixing rings and located on the rear sides of the vertical blocks, second ring grooves are formed inside the fixing rings, and first ring grooves are formed in the position, on the second ring grooves, inside the fixing rings. According to the beverage plastic bottle, the flowing-out speed of liquid in the bottle can be adjusted, a bottle cap can be opened conveniently, and beverage can be further contained.