ABA structure floor made of PVC material and production process

The invention discloses an ABA structure floor made of PVC material. The ABA structure floor comprises a lower LVT layer, an SPC stable layer, an upper LVT layer, a decorative layer, a wear-resistant layer and a UV coating, wherein the thickness ranking is theSPC stable layer>the lower LVT layer> the upper LVT layer, and the lower LVT layer, the SPC stable layer and the upper LVT layer form a stone-plastic base material layer in a co-extrusion mode. Different from a process of a PVC floor single-layer homogeneous base material produced by a traditional single extruder, the process realizes joint production of two extruders through the technical improvement of a distributor and adjustment and improvement of a formula, so that the base materials of different materials are reasonably layered, and an ABA structure is achieved. The product prepared by the process disclosed by the invention not only can ensure no thermal expansion and cold contraction deformation, but also does not influence other properties of the