< Topic > The crutch which can do the flight climbing easily with simple configuration is offered.Solutions Base material of long shaku and base material 10 the armpit pad section this connection section in 30 where is provided on the bottom of 20 where is provided on the top of 10 and base material 10 and base material 10 armpit pad section the crutch 1 which has with the grip section 40 where is provided with 20 and this connection section 30, extending from the lower part edge strip of base material, 10 the step section of the flight it has the engagement section 50 which is engaged, engagement section 50 curves and, buckling in circular arc condition, has the tread pushing pressure surface 52 which rises on underside side.< Choice figure > Drawing 1【課題】 簡単な構成で階段昇りを容易に行うことができる松葉杖を提供する。【解決手段】 長尺の支持体10と、支持体10の上端に設けられた脇当部20と、支持体10の下端に設けられた当接部30と、支持体10において脇当部20と当接部30との間に設けられた握り部40とを備える松葉杖1であって、支持体10の下部側面から突出して階段の段部と係合する係合部50を備え、係合部50は、円弧状に湾曲して反り上がる踏面押圧面52を下面側に備える。【選択図】 図1