The invention discloses a multifunctional portal tent, which comprises an umbrella body, a tent fabric and a retractable supporting rack. The tent fabric is ring-shaped. A seam is arranged on the tent fabric along the radial direction. A plurality of pull ropes are sewn in the tent fabric. The pull ropes are arranged along the radial direction of the ring-shaped tent fabric. One ends of the pull ropes are connected with iron piles which can be inserted into the ground. The retractable supporting rack comprises a central disc, three supporting legs and a supporting rod. The supporting rod and the central disc are fixedly sheathed together. A chuck which is used for connecting with the handle of the umbrella body is arranged at the top of the supporting rod. The multifunctional portal tent can be used as an umbrella or a sunshade at ordinary times. When people need to have a rest outdoors, the retractable supporting rack is unfolded, the supporting rod is adjusted and fixed at proper height, the umbrella body is unfolded, the handle is fixed on the chuck of the supporting rack, the upper part of the tent fabric is overlapped and fixed on an umbrella fabric, the pull ropes are pulled to enable the tent fabric to be fully unfolded, the iron piles are inserted into the ground to form a tent and the people can have a rest in the tent. The multifunctional portal tent is very convenient to use.