Based　on　the　concept　of　incompatible　factor,　this　paper　introduces　further　the　principle　of　minimal　incompatibility,　and　use　this　principle　to　improve　the　triple　I　method.　In　addition,　by　the　principles　of　maximal　support　and　minimal　incompatibility　the　solvings　of　the　problems　of　Fuzzy　Modus　Ponens　and　Fuzzy　Modus　Tollens　are　unified.　The　reason　why　the　new　method　is　more　reasonable　than　the　triple　I　method　is　analyzed,　and　the　new　method　is　generalized　by　considering　two　different　types　of　implication　operators.