Disturbances　and　uncertainties　affect　the　performance　of　control　systems　and　must　be　addressed.　In　addition,　due　to　the　potential　privacy　leakage　caused　by　the　informatization　and　networking　of　control　systems,　ensuring　system　privacy　has　become　an　important　technical　challenge.　The　topic　of　this　paper　is　active　disturbance　rejection　control　(ADRC)　with　differential　privacy　preserving　for　switched　multiple　systems.　By　adding　privacy　noise　with　Laplace　and　uniform　distribution　to　the　system　state,　the　novel　privacy-preserving　ADRC　(PP-ADRC)　framework　ensures　the　required　ADRC　performance　and　privacy　of　system　information　in　a　non-ideal　network　environment.　The　innovation　of　this　paper　is　embodied　in　three　aspects:　(i)　The　designed　performance-dependent　differential　privacy　preserving　mechanism　(PD-DPPM)　under　Laplace　noise　can　adaptively　balance　system　privacy　and　control　performance.　(ii)　The　presented　privacy　budget　lower　bound　of　uniform　noise　can　determine　the　size　of　the　uniform　noise,　making　the　PD-DPPM　method　more　general　in　the　field　of　privacy　preservation.　(iii)　The　newly　constructed　dual　design　of　switching　law　and　controller　for　PP-ADRC　can　ensure　boundedness　and　H∞　performance.　Lastly,　illustrative　examples　are　provided　to　explain　effectiveness.　©　2004-2012　IEEE.