Pathological changes of "Cow non-leukosis lympboaarcomatosis were described detalledly in this paper. The description which would enrich and complement the knowledge of the diseease was emphasized on the morphologi-cai characteristic of lympboflasis and lymphocyte-like oncocytes.The term "Cow non-leukcsis lymphosarcomstosis giving a detailed description of patbomorphological characteristics of this disease was flntly nominated in this paper refrring to literatuea in our country.