This　research　studied　effect　of　elevated　temperature　on　properties　of　magnesium　phosphate　cement　(MPC).　Properties,　including　strength,　colour,　mass　loss,　and　microstructure,　of　MPC　specimens　before　and　after　exposure　different　high　temperature　were　measured　or　observed　in　this　paper.　Seven　sample　mixtures　contained　varying　amounts　of　fly　ash　and　sand　are　considered　in　the　experimental　program.　The　mechanical　properties　of　MPC　were　measured　by　heating　40　x　40　x　160　mm　sample　to　130,　500　and　1000　degrees　C　at　a　rate　of　10　degrees　C/min.　The　obtained　results　demonstrate　that　strength　of　MPC　decreased　significantly　when　the　temperature　passed　130　degrees　C.　After　130　degrees　C,　the　amplitude　of　strength　decreased　of　MPC　became　less　with　the　increasing　of　temperature.　The　results　of　Differential　thermal　analysis　(DTA)　and　thermo-gravimetric　analysis　(TG)　indicate　that　the　crystal　water　in　MKP　center　dot　6H(2)O　were　lost　at　the　temperature　of　125　degrees　C.　The　loss　of　crystal　water　in　MKP　center　dot　6H(2)O　was　the　main　reason　of　strength　decreasing　and　mass　loss　of　MPC　after　exposure　to　high　temperature.　The　results　also　show　that　the　presence　of　fly　ash　and　sand　decrease　residual　strength　of　MPC.　(C)　2015　Elsevier　Ltd.　All　rights　reserved.