Based　on　the　basic　physical　meaning　of　error　E　and　error　variety　EC,　this　paper　analyzes　the　logical　relationship　between　them　and　uses　Universal　Combinatorial　Operation　Model　in　Universal　Logic　to　describe　it.　Accordingly,　a　flexible　logic　control　method　is　put　forward　to　realize　effective　control　on　multivariable　nonlinear　system.　In　order　to　implement　fusion　control　with　artificial　neural　network,　this　paper　proposes　a　new　neuron　model　of　Zero-level　Universal　Combinatorial　Operation　in　Universal　Logic.　And　the　artificial　neural　network　of　flexible　logic　control　model　is　implemented　based　on　the　proposed　neuron　model.　Finally,　stability　control,　anti-interference　control　of　double　inverted-pendulum　system,　and　free　walking　of　cart　pendulum　system　on　a　level　track　are　realized,　showing　experimentally　the　feasibility　and　validity　of　this　method.