The　practical　implementation　of　hazard　analysis　and　critical　control　point　(HACCP)　in　particular　the　definition　of　the　critical　control　points　(CCPs)　in　the　food　industry　is　usually　a　complex　system　engineering.　The　application　of　fault　tree　analysis　(FTA)　approach　to　the　first　and　second　principles　of　HACCP　was　recommended.　Combined　the　fuzzy　arithmetic　and　defuzzification　with　FTA,　HACCP　plans　were　created　and　updated.　A　software　tool　will　be　developed　based　on　the　approach　introduced,　aimed　at　simplification　and　automation　of　the　hazard　analysis.