The　current　study　is　dedicated　to　addressing　the　stability　and　weighted　(Formula　presented.)　-gain　performance　analysis　of　switched　impulsive　positive　systems　(SIPSs).　Firstly,　by　designing　a　novel　multiple　piecewise-continuous　copositive　linear　Lyapunov　function　and　using　the　mode-dependent　average　dwell　time　(MDADT)　switching　method,　improved　stability　conditions　that　are　able　to　achieve　a　tighter　dwell　time　bound　are　developed.　It　is　shown　that　the　system　under　study　is　stable　and　possesses　an　attenuation　property　under　the　designed　switching　signals.　Secondly,　with　the　above　stability　conditions,　a　more　effective　controller　design　strategy　has　been　proposed.　The　solved　controllers　are　both　quasi-time　dependent　and　mode-dependent.　Moreover,　the　constraint　on　the　rank　of　the　controller　and　the　computation　burden　caused　by　iteration　algorithm　used　in　literature　are　relaxed.　Finally,　the　feasibility　and　superiority　of　the　proposed　strategies　are　verified　by　some　simulations.　©　2021　The　Authors.　IET　Control　Theory　&　Applications　published　by　John　Wiley　&　Sons　Ltd　on　behalf　of　The　Institution　of　Engineering　and　Technology