Based　on　the　analysis　to　the　characteristics　of　two　kinds　of　rock　steady　creep　curves,　the　nBurgers　model　that　can　describe　the　uniaxial　creep　properties　of　rock　is　presented.　Considering　the　external　influences　on　rock　deformation　as　instantaneous　elastic　deterioration　defined　by　the　reduction　of　instantaneous　elastic　modulus　and　long-term　creep　deterioration　defined　by　the　reduction　of　long-term　creep　modulus,　kBurgers　model　with　deterioration　is　presented　too.　On　this　basis,　three-dimensional　model　considering　the　Poisson＇s　ratio　and　Bulk　modulus　as　the　constant　are　established　separately,　and　the　relationship　between　their　parameters　is　obtained.　Finally,　According　to　a　calculation　example,　the　deterioration　evolution　of　model　parameters　considering　water　content　changing　under　the　assumption　of　constant　bulk　modulus　is　analyzed.　In　addition,　the　deterioration　evolution　equations　of　instantaneous　elastic　and　long-term　creep　under　the　assumption　of　constant　bulk　modulus　are　obtained.　It　is　verified　that　conversion　relationships　of　model　parameters　are　reasonable.　©　(2011)　Trans　Tech　Publications.