The invention discloses a modular furniture processing method. The method comprises the following steps of (1) preparing materials; (2) pre-modeling, specifically, designing a furniture model in advance, measuring the thickness of the furniture model and selecting a plurality of wood sheets with uniform thickness, wherein the total thickness of the multiple wood sheets is equal to the actual required thickness of the furniture model; (3) carrying out sawing in a staggered mode, specifically, sawing the wood sheets in advance according to parts required to be curved and staggered according to the curved shape of the furniture model; (4) carrying out gluing, specifically, the mutual contact surfaces between the wood sheets are brushed with glue; (5), carrying out hot -pressing; (6) carryingout polishing; and (7) carrying out paint spraying, specifically, furniture is sprayed with paint, and the paint surface is dried. The method has the advantages of being convenient to manufacture, attractive in appearance, free of breakage, cracking or deformation and capable of meeting the natural and environment-friendly requirements of solid wood furniture, in addition, the mechanical batch production can be facilitated, the production efficiency is high, the material loss is extremely small, the cost can be greatly lowered, and the product quality is stable.