The invention relates to polymerizable ZnS nanoparticles, a preparation method and a method for preparing a high-refraction eye diopter correction material from same. The preparation method comprises the following steps: firstly, by taking zinc salt, sulfydryl alcohol and thiourea as main raw materials, preparing ZnS nanoparticles modified by sulfydryl alcohol; secondly, and performing a reaction on the ZnS nanoparticles modified by sulfydryl alcohol with methacrylic acid-2-isocyano ester, thereby obtaining the polymerizable ZnS nanoparticles. Controllable grafting of polymerizable groups on the surfaces of ZnS nanoparticles is achieved, and furthermore the cross-linking degree and the modulus of the polymerizable ZnS nanoparticles introduced into a polymer hydrogel body can be controlled; in addition, grafting of polymerizable groups on the surfaces of the ZnS nanoparticles is completed through one step of reactions, and simple synthesis is achieved; and the high-refraction eye diopter correction material prepared from the polymerizable ZnS nanoparticles provided by the invention has properties of high water content, high refraction, excellent mechanical properties and the like expected by diopter correction materials.