Cement　has　been　well　documented　to　positively　affect　the　early-age　strength　of　the　cement　asphalt　emulsion　mixtures　(termed　as　CAEM)　without　compromising　workability.　However,　the　long-term　performance　of　the　CAEM　incorporating　multiple　cement　combinations　is　not　conclusive.　This　study　explored　the　effect　of　the　combined　usage　of　ordinary　portland　cement　(OPC)　and　sulfoaluminate　cement　(SAC)　on　the　long-term　performance　and　microstructural　properties　of　a　CAEM　system　in　detail.　Three　tasks　were　conducted,　including　(1)　designing　six　CAEM　formulations　by　introducing　different　types　(OPC　and　SAC)　and　contents　(2-6　wt%)　of　cement;　(2)　evaluating　the　long-term　performance　by　moisture　susceptibility,　frost　damage,　abrasion　resistance,　and　rutting　resistance;　and　(3)　characterizing　the　microstructural　properties　by　scanning　electron　microscopes　and　energy-dispersive　spectrometers.　The　experimental　results　revealed　that　the　relative　dynamic　elastic　modulus　of　CAEM　was　increased　to　69.7%　when　admixing　90　wt%　OPC　and　10　wt%　SAC.　The　mixture　incorporating　90　wt%　OPC　and　10　wt%　SAC　demonstrated　excellent　rutting　resistance　up　to　similar　to　31,000　cycles/mm　of　dynamic　stability.　The　improved　long-term　performance　actually　originated　from　the　reduced　voids　and　produced　a　dense　microstructure.　The　outcomes　could　facilitate　tailoring　CEAM　products　with　better　long-term　performance.