In　this　paper,　we　tackle　the　problem　of　analyzing　dissipativity,　via　devising　switching　mechanisms,　for　switched　positive　Takagi-Sugeno　(T-S)　fuzzy　systems　with　time-varying　delay.　To　leverage　the　positivity　properties　of　state,　input　and　output　variables,　a　novel　concept　of　dissipativity　is　developed,　focusing　on　linear　supply　rates　and　linear　copositive　storage　functionals.　When　state　information　is　available,　the　state　dependent　switching　mechanism　satisfying　a　dwell　time　constraint　is　introduced　dependent　on　the　constructed　time-varying　multiple　linear　copositive　storage　functionals.　This　mechanism　allows　for　solving　the　dissipativity　issue　for　the　entire　system　without　imposing　any　solvability　requirements　on　subsystems　and　reduces　the　switching　frequency.　In　cases　where　state　information　is　unavailable,　dissipativity　is　ensured　by　a　dwell-time　dependent　switching　mechanism.　Further,　all　conditions　guaranteeing　the　solvability　of　the　problem　are　presented　in　the　form　of　linear　vector　inequalities.　Two　simulation　examples　are　finally　offered,　demonstrating　that　the　proposed　techniques　are　effective　and　superior.　　©　1993-2012　IEEE.