Disclosed is a multifunctional electric wheelchair for travelling without boundaries, comprising a seat (1), a backrest (2), armrests (3) and a foot rest (4), wherein the bottom end of the backrest (2) is arranged on the back end of the upper surface of the seat (1) the backrest (2) is movably connected to the seat (1) there is a safety belt between the backrest (2) and the seat (1) a main frame (10) is arranged under the seat (1) the two sides of the seat (1) are connected to the main frame (10) by an automatic balancing device (31), respectively, and are used to ensure that the seat (1) remains horizontal when going up and down the stairs two tracks (8) are symmetrically arranged on the bottom of the main frame (10) there is a front pushrod (5) arranged between the two tracks (8) the two sides of the main frame (10) near the back end are respectively provided with auxiliary telescopic support arms (9) an auxiliary wheelchair (28) is set inside the main frame (10) the foot pedal (4) is arranged on the auxiliary wheelchair (28) when climbing the stairs, going up/down or leaving the stairs are accomplished by mutually cooperating with intermesh stretching of the support arm and movement of the tracks (8) since the tracks (8) accomplish travelling on the stairs and slopes alone, when a user need to go to the toilet or get in and out of bed, he/she can sit in the auxiliary wheelchair (28) to accomplish same alone the number of the armrests (3) is two, which are are respectively set at the left and right side of the main frame (10) the back end of the undersurface of the main frame (10) is symmetrically provided with two active wheels (6) and the front end of the undersurface of the main frame (10) is symmetrically provided with two driven wheels (7), and the diameter of the driven wheel (7) is less than or equal to the diameter of the active wheel (5).Linvention concerne un fauteuil roulant électrique multifonctionnel pour se déplacer sans limite, comprenant un siège (
