By using Pang-Zalcman lemma,the relation between shared values and normal families,were studied and the conclusion concerned with the shared values was obtained:let F be a family of meromorphic functions on domain D, a,c be two non-zero complex numbers and b,d two positive numbers,if all zeros of functions in F have multiplicities at least k+1, and f(k)(z)+a1(z)f(k-1)(z)+…+ak(z)f(z)=a｜f｜≥b,f(z)=c｜f(k)(z)+a1(z)f(k-1)(z)+…+ak(z)f(z)｜≤d, then F is normal.