Abstract: In this paper we discussed the conceptual reduction of fuzzy object oriented concept lattices. hhrec kinds of variable threshold concept lattices, i. e.，crisp-crisp, crisp-fuzzy, fuzzy-crisp variable threshold object oriented concept lattices,and the properties and the relations of them were discussed. The results shows that the number of concepts in variable threshold object oriented concept lattices is less than that in fuzzy object oriented concept lattices,and the important conpeal is preserved.

Key words: Galois connection, Fuzzy formal context, Fuzzy object oriented concept lattice, Variable threshold object-oriented concept lattice