The invention relates the method for preparation of super high pressure and special high polymer rubber belt base material. The raw material comprises K polyvinyl chloride resin, high K polyvinyl chloride resin, C11 nanometer active carbonate, pasty polyvinyl chloride resin, polyester plasticity agent, DINCH plasticity agent, epoxy plasticity agent, anti-oxidant, UV absorbing agent, fire retardant, PVC processing auxiliary agent, MS nanometer rare earth stabilizing agent, calcium and zinc stabilizing agent, J710 flowable agent, lubricating agent, and pigment. The method comprises the following steps: adjusting the metering system according to product formula, then using low-speed hot agitator, cold agitator, extrusion machine, tow-roll mill, filter and calendar, and getting resin rubber belt base material, then stretching, cooling, embossing, batching, checking, and getting the product.