A walking stick chair includes a main stick, a seat unit, a support unit, and a linking unit. The seat unit includes a sleeve member connected in a fixed position to the main stick, and a seat member connected pivotally to the sleeve member and operable between a folded state and an unfolded state. The support unit is connected pivotally to the main stick. The linking unit is connected pivotally to the support unit and the seat member. When the seat member is at the unfolded state, the walking stick chair serves as a chair, and when the seat member is operated from the unfolded state to the folded state, the walking stick chair is converted from the chair to a walking stick.