The invention relates to a preparing technology of chenille yarn imitating rabbit hair. The preparing technology is characterized in that on the basis of traditional chenille yarn, hot-fusing yarn twisted in yarn cores is added, and in the later process of weaving the chenille yarn, the chenille yarn is heated, wherein the hot-fusing yarn can be fused along with the rise of the temperature, and after the hot-fusing yarn is fused, external fluffs can be stuck. In this way, the chenille yarn imitating the rabbit hair is obtained.