A leg rest device of a power vehicle includes: a supporting unit a first lifting unit pivotally provided at the supporting unit and pivotable with respect to the supporting unit a second lifting unit mounted to the first lifting unit and movable in a telescoping manner an actuation unit connected to the supporting unit and configured to drive the first lifting unit and a linkage unit having a first connecting member, a second connecting member, and a third connecting member, wherein the first connecting member and the second connecting member are separately and pivotally connected to the supporting unit while the third connecting member is separately and pivotally connected to the first connecting member, the second connecting member, and the second lifting unit.
