In order to improve the disadvantage in the process of constructing concept lattice which products enormous meaningless association rule, based on the analysis of the existing concept lattice and its improved model, attribute-oriented generalization is introduced into the research of concept lattice .A new lattice is proposed, which is called Generalized Attributive Concept Lattice. At the same time, qualities of Generalized Attributive concept lattice are proved. The constructing theory of Generalized Attributive concept lattice is analyzed. A novel algorithm of constructing concept lattice is proposed.