In　this　study,　long-term　uniaxial　compression　creep　experiments　and　indentation　tests　were　performed　on　cement　paste　(CP)　under　four　relative　humidity　(RH)　to　investigate　creep＇s　multi-scale　prediction　and　mechanism.　The　long-term　creep　kinetics　of　CP　were　predicted　by　homogenization　calculations　at　two　scales.　The　time　corre-spondence　between　uniaxial　compression　creep　and　indentation　creep　of　CP　was　studied　by　the　discrete　retar-dation　spectrum　(DRS).　The　results　show　that　the　multi-scale　prediction　of　creep　was　more　accurate　than　those　measured　by　microindentation.　DRS　of　macroscopic　creep　experiment　and　indentation　test　show　there　are　two　short-term　and　one　long-term　creep　mechanisms.　The　peak　time　of　the　first　mechanism　occurs　at　1.3　d　of　macroscopic　uniaxial　experiment　and　1　s　of　indentation　test,　while　the　second　mechanism　occurs　at　14　d　and　10　s.　The　third　mechanism　is　entered　after　62　d　in　the　uniaxial　compression　experiment　and　22　s　in　the　indentation　test.