Using platinum complexes(Pt-PMVS) as a catalyst for hydrosilylation reaction of dihydromyrcenol with triethoxysilane, a new type of silane coupling agent, [2,6-dimethyl-8-(triethoxysilyl)octan-2-ol](DHMS) is prepared,and the target product and by-products was characterized. The effects of reaction conditions such as solvent, reaction time, reaction temperature and Pt content reaction on the target product and by-products generation were investigated. The results show that under optimized reaction condition, the DHMS is obtained with yield up to 69.7%,and the purity is higher than 98% in weight.