Three-dimensionally　ordered　macroporous　(3DOM)　TiO2-supported　AuPd　alloy　(xAu(y)Pd/3DOM　TiO2　(x　=　0.87-0.91　wt%;　y　=　0.51-1.86))　catalysts　for　trichloroethylene　(TCE)　oxidation　were　prepared　using　the　polymethyl　methacrylate-templating　and　polyvinyl　alcohol-protected　reduction　methods.　The　as-prepared　materials　possessed　a　good-quality　3DOM　structure　and　a　surface　area　of　49-53　m(2)/g.　The　noble　metal　nanoparticles　(NPs)　with　a　size　of　3-4　nm　were　uniformly　dispersed　on　the　surface　of　3DOM　TiO2.　The　0.91Au(0.51)Pd/3DOM　TiO2　sample　showed　the　highest　catalytic　activity　with　the　temperature　at　a　TCE　conversion　of　90%　being　400　degrees　C　at　a　space　velocity　of　20,000　mL/(g　h).　Furthermore,　the　0.91Au(0.51)Pd/3DOM　TiO2　sample　possessed　better　catalytic　stability　and　moisture-resistant　ability　than　the　supported　Au　or　Pd　sample.　The　partial　deactivation　induced　by　H2O　introduction　of　0.91Au(0.51)Pd/3DOM　TiO2　was　reversible,　while　that　induced　by　CO2　addition　was　irreversible.　No　significant　influence　on　TCE　conversion　was　observed　after　introduction　of　100　ppm　HCl　to　the　reaction　system　over　0.91Au(0.51)Pd/3DOM　TiO2.　The　lowest　apparent　activation　energy　(51.7　kJ/mol)　was　obtained　over　the　0.91Au(0.51)Pd/3DOM　TiO2　sample.　The　doping　of　Au　to　Pd　changed　the　TCE　oxidation　pathway,　thus　reducing　formation　of　perchloroethylene.　It　is　concluded　that　the　high　adsorbed　oxygen　species　concentration,　good　low-temperature　reducibility,　and　strong　interaction　between　AuPd　NPs　and　3DOM　TiO2　as　well　as　more　amount　of　strong　acid　sites　were　responsible　for　the　good　catalytic　activity,　stability,　and　water-and　HCl-resistant　ability　of　0.91Au(0.51)Pd/3DOM　TiO2.　We　believe　that　0.91Au(0.51)Pd/3DOM　TiO2　may　be　a　promising　catalyst　for　the　oxidative　elimination　of　chlorine-containing　volatile　organics.