Abstract: Based on Ref.1 and 2,E.Hille-E.Yosida or Goldstein operation (semigroup)group is considered in this paper.A distrurbed linear operation semigroup is discussed which processes convergent operator in norm,stiff continuous,and sole and differential characteristics.The relationship between disturbed linear operation semigroup and 4-order feedback evolution equation is presented in a view of generating operator.