Abstract: The idea of "quasi coincidence" was applied on interval valued fuzzy sets, a new kind of fuzzy lattice implication subagebras was proposed, called interval valued (α,β)-fuzzy lattice implication subalgebras. Some properties of this new fuzzy lattice implication algebra were investigated. The relations between (α,β)-fuzzy lattice implication subalgebra and lattice implication subalgebras were studied. Some equivalent characterization theorems of interval valued (α,β)-fuzzy lattice implication subalgebras were established.

Key words: Lattice implication algcbra,Intcrval valued fuzzy scts,Fuzzy points, (α,β)-fuzzy subalgcbras