The invention provides a tire curing bladder and a preparation technology thereof, and belongs to the technical field of rubber tires. The technology includes two stages, wherein in the first stage, 268 butyl rubber IIR, 1/2 carbon black N330, 1/2 carbon black N330 and other materials except 202 resin are added in sequence; in the second stage, first-stage rubber is added, filtering is carried out, the 202 resin is added, standing is carried out, and curing is carried out. The curing bladder and the preparation technology thereof have the advantages that the materials are scientific and environmentally, the cost is low, the economic benefit is good, and the yield is high. The tire curing bladder and the preparation technology thereof are reasonable in design, the raw materials are easy toobtain, the formula is simple, the safety and reliability are achieved, the technology is convenient to operate and easy to master, and the application and popularization value is good.