The present invention discloses a height self-adjustable walking aid, comprising two oppositely arranged U-shaped stands which are connected by a front stand, wherein the two ends of each U-shaped stand are sleeved with two outer pipes respectively, and each outer pipe is mounted with a height adjusting apparatus and a control apparatus for height adjusting the walking aid of the present invention is adjustable in height according to the heights of users, so as to satisfy the requirement of allowing the patients or elders with different heights to use a same equipment, whereby providing great convenience for users meanwhile, the heights of the two ends of each U-shaped stand could be adjustable respectively, to generate a height difference between the front end and rear end of the walking end, so as to enable the patients or elders to walk up and down the stairs with it.
