A kind of lift leg device of scooter includes a bracket group; One first lift group, the what bracket group that is pivoted and can be put with respect to the bracket group pivot; One second lift group installs what the first lift group and Telescopic movable; One actuation group connects and sets the what bracket group and interlock the first lift group; One connection rod set has a first connecting rod and a second connecting rod is pivotally connected the bracket group respectively and a third connecting rod is pivotally connected the first connecting rod and second connecting rod respectively, which is also pivotally connected the second lift group.一種代步車的抬腿裝置,包含有一支架組;一第一抬組,樞設於該支架組而可相對該支架組樞擺;一第二抬組,裝設於該第一抬組而可伸縮移動;一作動組,接設於該支架組且連動該第一抬組;一連桿組,具有一第一連桿及一第二連桿分別樞接該支架組,以及一第三連桿分別樞接該第一連桿與第二連桿,該第三連桿還樞接該第二抬組。