The invention relates to a multifunctional portable walking aid. The multifunctional portable walking aid comprises an n-shaped main frame and an n-shaped auxiliary frame and is characterized in thatthe main frame comprises two long vertical rods and one transverse rod, the auxiliary frame comprises one long vertical rod, one short vertical rod and one transverse rod, the short vertical rod of the auxiliary frame is hinged to one of the long vertical rods of the main frame to form a walking aid frame with one front long vertical rod and two rear long vertical rods; universal wheels are mounted at the bottoms of the three long vertical rods of the walking aid frame; two armrest cushions are respectively hinged to the transverse rod of the main frame and the transverse rod of the auxiliaryframe; each of the main frame and the auxiliary frame is provided with two support transverse rods; the walking aid is provided with brake devices, a folding device, a seat cushion, the armrest cushions, telescoping sleeves, a pull rod, a storage bag and the like. The multifunctional portable walking aid is stable in operation, labor-saving in use and capable of being carried about conveniently.