A lift and transfer apparatus for patient has a wheeled support base, and a main support post; the base has an upwards projecting securing portion, which has a locating room defined by front and rear short plates, and left and right inverted L shaped long plates, which each has an inverted L shaped guiding slot; the post is inserted into the locating room at lower end, and secured to the securing portion with bolts, a second one of which bolts is passed through the slots, and the post; thus, the slots allows the post to be displaced towards rear side of the apparatus until the second bolt abuts slot upper rear ends after the other bolts have been removed, and the second bolt loosened, and after the post is pivoted downwards for folding the apparatus, and length of the apparatus, in folded position, can be reduced.