This　paper　studies　the　simultaneous　fault　detection　and　control　problem　for　linear　uncertain　discrete-time　systems.　A　design　procedure　dealing　with　polytopic　uncertainties　is　proposed　for　residual　generation,　where　both　the　fault　detection　objectives　and　some　control　objectives　are　considered　simultaneously　through　certain　performance　indexes.　To　cope　with　the　fault　sensitivity　performance　index　in　a　given　frequency　range　directly,　the　generalised　KYP　lemma　is　introduced　in　this　framework.　A　two-step　procedure　is　adopted　to　obtain　the　solutions　through　satisfying　a　set　of　linear　matrix　inequalities.　A　numerical　example　is　given　to　illustrate　the　effectiveness　of　the　proposed　methods.