Diisopropyl xanthan tetrasulfide can be used as rubber accelerator. The rubber accelerator diisopropyl xanthic acid polysulfide (pbs-100) is an environmental friendly rubber accelerator. The addition of rubber accelerator into the rubber compound can promote the activation of vulcanizing agent, so as to accelerate the cross-linking reaction between vulcanizing agent and rubber molecules, so as to shorten the vulcanization time and reduce the vulcanization temperature.