A leg type mobile robot includes a foot joined to a distal end of a leg through a second joint. The foot includes a foot flat portion having a ground contact end of the foot, a movable portion joined to the second joint and configured to be movable in a first direction with respect to the foot flat portion, a shock absorber comprising first and second end portions allowed to move closer to or away from each other in a second direction, the first end portion of the shock absorber being joined to a first point of the movable portion, and a motion direction conversion mechanism configured to convert a motion of the movable portion in the first direction to a motion of the second end portion of the shock absorber in the second direction with respect to the first point of the movable portion.