This　chapter　mainly　introduces　big　data　technologies　for　MaaS.　Firstly,　the　development,　definition,　and　purpose　of　MaaS　and　the　significance　of　data　mining　technologies　for　MaaS　are　introduced　briefly.　Following　this,　the　definition　of　data　mining,　its　processing　objects,　classical　steps　and　processes,　and　types　of　traffic　big　data　are　reviewed.　Afterward,　data　mining　technologies　such　as　support　vector　machine,　linear　regression,　decision　tree,　and　clustering　analysis　are　introduced.　Finally,　a　case　study　of　data　mining　technology　used　for　bike-sharing　in　Beijing　during　the　Covid-19　pandemic　is　presented　to　demonstrate　the　role　of　data　mining　technologies　in　travel　behaviors.　This　chapter　mainly　provides　a　clue　or　reference　for　the　exploration　of　big　data　analysis　of　MaaS.　©　2022　Elsevier　Inc.　All　rights　reserved.