In this paper, we study normal families of holomorphic function concerning shared a polynomial.Let F be a family of holomorphic functions in a domain D, k(2)be a positive integer, K be a positive number andα(z)be a polynomial of degree p(p 1).For each f∈F and z∈D, if f and f sharedα(z)CM and|f(k)(z)|K whenever f(z...