A simple hanging parasol includes a hanging shank, and a parasol body combined beside the shank. The shank has a fix base fixed on top, a slide sleeve fitting movably around the shank. The parasol body has a plurality of ribs, a plurality of spreaders, a canopy, an upper ring, a lower ring, and an elastic pulling member. The ribs have inner ends pivotally connected radially with the upper ring located at the center of the canopy and one outer end pivotally connected with the slide sleeve. The lower ring has a tubular member to fit with a conical insert rod of the upper ring to keep the ribs expanded to support the canopy in expanding the parasol, and to separate from the insert rod in collapsing the parasol to lie along beside the shank. The pulling member pulls the lower ring to let the tubular member of the lower ring automatically fit with the insert rod of the upper ring in expanding the parasol.