On　the　basis　of　describing　the　basic　principles　of　fuzzy　cluster　analysis　and　fuzzy　recognition,　the　procedure　of　fuzzy　cluster　analysis　and　fuzzy　recognition　for　assessment　of　environmental　water　was　simulated　on　a　computer.　The　computer　program　was　written　in　BASIC　and　implemented　on　an　Apple　II　computer.　A　set　of　data　for　environmental　water　samples　was　used　to　test　the　mathematical　models　and　computer　programs.　The　results　were　basically　in　agreement　with　the　experimental　assessment.　©　1993.