The invention discloses a method for producing a liquid wood integral door, which comprises the following steps of: 1) preparing liquid wood, namely (1) drying and grinding raw materials; (2) mixing the raw materials to obtain a mixture; and (3) generating the liquid wood, wherein the liquid wood comprises the following raw materials in part by weight: 100 parts of polyvinyl chloride, 40 parts of calcium carbonate, 60 parts of wood fiber powder, 4.5 parts of stabilizer, 8 parts of chlorinated polyethylene (CPE), 5 parts of acrylamide (ACR), 3 parts of H530, 0.5 part of polyethylene (PE) wax, 0.6 part of stearic acid, and 1 part of pigment; and 2) performing extrusion molding on the liquid wood at one time to obtain the integral door. In the method, the raw materials are molded at one time at a high temperature and under high pressure, do not contain formaldehyde, and are subjected to surface treatment by adopting thermal transfer technology; the integral door is free of paint, has no any toxic harmful gas and smell release in the production and use process, is environmental-friendly and has practicality.