To　get　more　acknowledges　about　W-shaped　flame　boiler,　scaled　down　experiment　system　was　set　up　to　collect　the　basic　data　about　temperature,　strain,　stress,　shear　and　heat　flux　distribution　of　W-shaped　flame　boiler.　The　results　showed　that　temperature　distribution　is　mainly　decided　by　the　distance　of　the　flame.　Area　which　is　washed　against　by　flame　shows　high　temperature.　The　temperature　on　the　front　wall　is　higher　than　rear　wall,　especially　on　the　connection　zone　between　furnace　chamber　and　upper　ash　hopper.　Heat　flux　distribution　is　dominated　by　both　radiation　and　convective　heat　transfer.　High　heat　flux　zone　is　surrounding　the　burners　and　it　is　decided　by　temperature　in　furnace　chamber.　Medium　heat　flux　zone　is　along　the　route　of　the　gas　fume　and　it　is　decided　by　gas　fume＇s　convective　heat　transfer.　Strain　distribution　is　well　matched　with　temperature　distribution　especially　in　high　strain　zone.　And　the　magnitude　of　stress　depends　on　temperature　gap,　but　the　direction　depends　on　both　temperature　gap　and　external　constraints.　In　this　experiment,　we　find　that　front　wall　is　more　vulnerable　than　other　walls　especially　on　the　connection　zone　between　furnace　chamber　and　upper　ash　hopper.　It　is　of　high　value　on　boiler　safety　operating　and　on　optimization　of　the　furnace　chamber＇s　structure.　©　ICOPE　2019　-　7th　International　Conference　on　Power　Engineering,　Proceedings.　All　rights　reserved.