The　product　innovation　was　a　topic　of　enterprise　development,　and　it　was　also　an　urgent　research　subject　of　importance.　FFE　(Fuzzy　front　end)　was　a　crucial　stage　which　was　the　most　manifest　of　the　product　innovation.　With　the　Development　of　the　FFE　study,　the　enabling　techniques　of　product　innovation　(such　as　TRIZ　tools,　Theory　of　constraints,　Unexpected　discovery,　Analogy-based　design　method　and　so　on)　study　took　the　role　in　obtaining　the　enlightenment　of　product　innovation..　In　order　to　effectively　resolve　product　conflict　question,　the　article　proposed　realizing　the　technical　route　of　concept　assumption　for　product　innovation,　and　established　the　unified　process　model　of　product　innovation　in　the　FFE　stage.　Finally,　the　patent　and　the　product　technology　maturity　forecast　for　hydrocyclones　were　analyzed　using　the　computer　aided　innovation　InventionTools3.0　software,　thus　verifying　process　model　validity　of　product　innovation　in　the　FFE　stage.