The invention discloses lacquer putty with easy construction and a construction method thereof. In a stirring tank, a filling material, which is formed by combining quartz sand, ground limestone, talcum powder and light calcium carbonate according to a certain formula ratio, is added, gelatine powder capable of redispersing, a slow-drying agent, defoamer, cellulose, a water reducing agent and fibers are added, and then cement is added; the stirring tank is started to stir the mixture evenly, and the product is obtained. The lacquer putty and the water according to the cement water ratio of between 30 and 40 to 100 are stirred evenly and the construction can be performed. The lacquer putty does not need to be polished, thereby avoiding a trace of a landing edge due to polishing affecting the decorative effect; and the lacquer putty is added with modified polyacrylonitrile fiber, thereby improving the wettability to water, having the functions of bonding various components and a framework of the lacquer putty in the initial drying stage of the lacquer putty, and improving the anti-cracking performance of the lacquer putty in the initial drying stage. After the lacquer putty is dried, the fibers provide certain flexible function for the lacquer putty, prevent crack from extending and improve the dynamic anti-cracking performance of the lacquer putty.