This　article　investigated　the　effect　of　the　individual　phases　on　the　creep　properties　of　cement　paste.　First　of　all,　the　contact　creep　modulus　of　the　paste　was　obtained　by　the　microindentation　test,　and　the　contact　creep　moduli　of　the　individual　phases　in　the　paste　were　obtained　by　the　nanoindentation　test.　Secondly,　the　volume　fractions　of　individual　phases　were　determined　by　micro　test　and　statistical　processing.　Then,　the　contact　creep　modulus　of　the　paste　was　calculated　with　the　homogenization　method　of　multiple　scales　and　compared　with　the　creep　modulus　of　the　paste　measured　by　microindentation.　Finally,　the　effect　of　pores,　C-S-H,　and　unhydrated　clinker　(UC)　on　the　creep　modulus　of　the　paste　was　quantitatively　analyzed.　The　results　showed　that　when　the　contact　creep　modulus　of　the　pore　was　regarded　as　0　GPa,　the　contact　creep　modulus　of　the　paste　was　significantly　underestimated.　The　effective　contact　creep　modulus　of　the　pore　should　be　used　for　the　homogenization　calculation.　The　C-S-H　gel　with　low　density　(LD)　and　C-S-H　gel　with　high　density　(HD)　had　opposite　effects　on　the　modulus　of　creep　of　the　paste　so　that　those　two　gels　needed　to　be　treated　separately　during　the　homogenization　process.　The　variation　range　of　the　contact　creep　modulus　of　UC　was　relatively　large　with　slight　effect　on　the　homogenized　contact　creep　modulus　of　the　paste.　Consequently,　it　can　be　treated　as　single-phase　in　the　homogenization　calculation.　©　2021　Elsevier　Ltd