The invention relates to a nitazoxanide suspension for expelling parasite in livestock body, comprising the following components by weight percent: 3-5 percent of nitazoxanide, 0.2-0.5 percent of xanthan gum, 0.2-0.6 percent of Carbomer, 0.3-0.6 percent of citric acid, 0.15-0.3 percent of trisodium citrate, 0.15-0.3 percent of stabilizing agent, 4-9 percent of flavoring agent and the balance of water. During preparation, water is added in the xanthan gum and Carbomer to prepare a glue solution; the glue solution is placed in an emulsifier, and then, the citric acid, trisodium citrate, stabilizing agent, nitazoxanide and flavoring agent are added for shearing. The invention has simple producing process and stable product quality, can be stored for a long time, needs no preparation in use, can be produced in large quantities, and can provide the herdsmen in pasturing areas and stockmen to prevent and treat parasite for herd and sheep flock.