摘要：The aim of this paper is to discuss the triple I restriction reasoning methods for fuzzy soft sets.Triple I restriction principles for fuzzy soft modus ponens (FSMP)and fuzzy soft modus tolleus (FSMT)are proposed,and then,the general expressions of the triple I restriction reasoning method for FSMP and FSMT with respect to residual pairs are presented respectively.Finally,the optimal restriction solutions for Lukasiewicz and Godel implication operators are examined.