The invention discloses a sulfur-loaded MOF@ conductive polymer material with high electronic conductivity and a preparation method thereof. The method comprises the steps that activated MOF powder isuniformly mixed with elemental sulfur, a mixture is heated after sealing is conducted, and the sulfur-loaded MOF material is obtained after cooling is conducted; the sulfur-loaded MOF material is modified with a surface active agent, the sulfur-loaded MOF material and conductive polymer monomers are dispersed in a solvent, and a polymerization agent is added in to conduct oxidative polymerizationreaction to obtain the sulfur-loaded MOF@ conductive polymer material. The abundant and ordered porous structure of the MOF can be maintained by the material, and the material has a core-shell structure which has better electronic transmission performance. Sulfur can be better dispersed in pores of MOF polarity by the MOF in the form of molecular state, and the MOF has a certain restriction effect on the dispersing of Li2S6 generated in the discharging process. Abundant electronic transmission channels are provided by conductive polymers, and the dissolving and dispersing of Li2S6 in electrolyte can be prevented. The material of a positive electrode of a Li-S battery has high specific capacity and circulation stability due to the synergistic reaction of the MOF and the conductive polymers.