Mobility-as-a-Service　(MaaS)　system　becomes　a　significant　part　of　urban　transportation　network　system　based　on　the　information　and　communication　technologies,　but　rarely　received　attention　in　tourism　transport.　This　paper　explored　the　impact　of　travel　mode　preferences　on　habitual　choice　behavior　for　MaaS　in　tourism,　and　an　online　survey　and　stated　preference　experiments　were　designed　and　carried　out.　Respondents　were　divided　into　three　categories　including　strictly　preference　(SP)　group,　weak　preference　(WP)　group,　and　no　preference　(NP)　group,　accounting　for　25.09%,　72.24%,　and　2.67%　respectively.　Estimation　results　of　the　mode　choice　random　parameter　logit　(RPL)　models　indicate　that　explanatory　variables　of　the　alternatives　(e.g.,　the　total　travel　time,　in-vehicle　cost,　and　walking　distance)　only　affect　the　travel　mode　choices　for　WP　group,　which　are　insensitive　to　the　SP　group　and　NP　group.　Marginal　effect　analysis　shows　that　mode　choice　preferences　for　MaaS　are　influenced　as　tour　experience　and　daily　travel　habits　change.