Abstract: Function P-sets(function packet sets) are obtained by introducing the function concept into and improving P-sets(packet sets),which have the dynamic characteristic．Function P-sets are a set-pair composed of function internal P-set S (function internal packet set S) and function outer P-set SF (function outer packet set SF),or (S,SF) is function P-sets．Using function internal P-sets,the paper gave the concept and attribute theorem,the dependence characteristic and data loss theorem of internal P-information las generation,the orbital transfer characteristic of information law of internal P-information law dependence．At last,the internal-mining of unknown internal P-information laow dependence and its application were given.

Key words: Function P-sets,Internal P-information law,Law depence,Internal-mining,Orbital transfer of information law,Application