This　paper　documents　a　field　investigation　into　the　skid　resistance　degradation　of　asphalt　pavement　during　early　service.　Field　tests　were　conducted　7　times　during　more　than　2　years.　There　are　2　highway　sections　included　in　the　field　tests,　which　cover　4　asphalt　surface　types,　i.e.,　dense　asphalt　concrete　(DAC),　rubber　asphalt　concrete　(RAC),　stone　matrix　asphalt　(SMA),　and　ultra-thin　wearing　course　(UTWC).　Macrotexture　and　friction　data　were　collected　using　the　sand　patch　method　and　the　dynamic　friction　tester　respectively.　The　degradation　of　the　mean　texture　depth　(MTD)　and　the　friction　coefficient　at　slip　speed　of　60　km/h　(DFT60)　were　analyzed.　The　international　friction　index　(IFI)　was　also　calculated　using　the　friction　coefficient　at　slip　speed　of　20　km/h　(DFT20)　with　MTD　to　evaluate　the　skid　resistance　degradation.　The　UTWC　has　relatively　good　skid　resistance　even　after　7.4　×　106　standard　vehicle　passes.　The　SMA　has　very　stable　friction　performance　which　maintains　almost　the　same　friction　level　after　4.61　×　106　standard　vehicle　passes.　The　DAC　and　RAC　have　relatively　poor　friction　performance　while　the　RAC　has　better　macrotexture.　The　changing　trends　of　skid　resistance　with　traffic　wear　can　be　fitted　by　a　logarithmic　model　for　all　surface　types.　The　SMA　and　UTWC　have　relatively　clear　relationship　between　DFT20　and　MTD,　while　the　RAC　and　the　DAC　show　more　complex.　©　2016