A luggage carrier includes a support base, two side brackets telescopically mounted on two opposite sides of the support base, and a telescopically arranged handle assembly pivotally and foldably mounted on an end of the support base. Thus, each of the side brackets is movable outward relative to the support base to expand the two side brackets so as to increase and adjust the width of the support base so that the luggage carrier can bear a larger load. In addition, the handle assembly is received in the receiving slots of the support base, thereby folding the handle assembly so that the handle assembly is folded when not in use.