Cold　patching　materials　(CPMs)　are　commonly　used　for　rapid　pavement　pothole　repairing　in　cold　and　wet　conditions.　In　this　study,　the　composition　of　composite　polymerized　asphalt　emulsions　(CPAEs)　as　binders　in　CPMs　was　optimized　using　the　response　surface　methodology　(RSM).　Three　factors　with　three　levels　and　four　responses　were　considered.　The　RSM　models　had　coefficients　of　determination　of　nearly　1.0,　indicating　a　strong　correlation　between　multiple　factors　and　responses.　The　high　and　low　true　grade　of　CPAEs　were　dominated　by　the　dosage　of　styrene-butadiene-styrene　(SBS)　and　styrene-butadiene　rubber　(SBR)　latex,　while　both　the　sieve　residue　and　storage　stability　greatly　depended　on　the　emulsifier　percentage.　The　optimal　dosage　of　SBS,　SBR　and　emulsifier　in　CPAEs　was　finally　determined　to　be　7.32%,　7.78%　and　3.44%,　respectively,　and　validated　by　experiments.　The　modified　CPMs　prepared　with　the　optimal　CPAEs　demonstrated　superior　resistance　to　permanent　deformation,　thermal　cracking,　moisture　damage,　the　initial　and　cured　strength　compared　to　non-modified　CPMs.