A kind of leg of wheelchair leans on device, is to be mounted on the front side bottom of a wheelchair with a seat with what, and includes an installation unit and a pedal unit. The installation unit includes the fixed link in front of the side of an installation what seat. The pedal unit includes the revolving part that the rotation axis that can tilt extension around one rotationally connects the what fixed link. The pedal unit is by the design that can be rotated around the rotation axis of inclination extension, and side lower section of the energy swing by being bonded to the seat, can avoid hindering user's removal or immigration because of the side of the prominent seat when what folds, using upper more convenient easy.一種輪椅的腿靠裝置，是用於安裝在一輛具有一個椅座之輪椅的前側底部，並包含一個安裝單元，及一個腳踏單元。該安裝單元包括一支安裝於該椅座之旁側前方的固定桿。該腳踏單元包括一支可繞著一條傾斜延伸之旋轉軸線轉動地連接於該固定桿的旋轉件。該腳踏單元藉由可繞著傾斜延伸之該旋轉軸線轉動的設計，於收合時能旋擺靠合至該椅座之旁側下方，可避免因突出該椅座之旁側而阻礙使用者移出或移入，使用上更為方便容易。
