The invention discloses graphene-latex functional high-strength protective gloves and a preparation method thereof. The gloves are repeatedly usable graphene-latex protective gloves or disposable graphene-latex gloves. When the gloves are repeatedly usable graphene-latex protective gloves, the preparation method includes: dipping a glove blank in a coagulating agent and then in a graphene-latex compound liquid, and then performing drying; and when the gloves are disposable graphene-latex gloves, the preparation method includes: dipping a glove mold in a coagulating agent, performing drying, then conducting dipping in a graphene-latex compound liquid, and then carrying out edge curling, vulcanization and cooling. Compared with the prior art, the graphene-latex protective gloves prepared by the method provided by the invention give full play to the advantages of high conductivity, high strength, friction resistance, strong bacteriostasis and the like of graphene, and accordingly have wider application in manufacturing industry, medical industry, chemical industry, aerospace industry and other fields.