The invention relates to a soft and non-sticky waterborne polyurethane leather surface material and a preparation method thereof. The soft and non-sticky waterborne polyurethane leather surface material is composed of the following components: 30-40 weight parts of ester ether copolymerized polyol, 30-40 weight parts of polytetramethylene ether glycol, 10-15 weight parts of isocyanate, 3-5 weight parts of a diol chain extender, 2-3 weight parts of a diamine chain extender, 3-4 weight parts of a salt-forming agent, and 0.5-1 weight part of a SiO2 hybrid material. The waterborne polyurethane leather surface material provided by the invention has excellent water resistance and bending resistance, the formed film is soft and non-sticky, has excellent handfeel, meets the facing use need of various soft synthetic materials, and has good lamination effect.