Provided is a multifunctional wheelchair, comprising a base (1) with wheels (17), and an adjustable lifting device (2) connected above the base (1). The adjustable lifting device (2) comprises a seat plate (3), a backrest (4) hinged to a rear end of the seat plate (3), a lower connecting plate (5) connected to the base (1), and a supporting structure (6) hinged between the seat plate (3) and the lower connecting plate (5). The support structure (6) comprises a front support bar assembly (61) and a rear support bar assembly (62). The adjustable lifting device (2) further comprises a driving mechanism for driving the rotation of the support structure (6) and/or for driving the lifting of the seat plate (3). The driving mechanism can produce a rotary motion or a linear motion, so that a parallelogram mechanism formed by the seat plate (3), the front support bar assembly (61), the lower connecting plate (5), and the rear support bar assembly (62) is in an unfolded state or a stored state. Due to the structure that the base (1) is matched with the adjustable lifting device (2), the height and angle of the wheelchair body can be adjusted, which has wider applicability. The wheelchair is suitable for beds of various heights and meets various needs of lying, sitting, moving, folding and so on.La présente invention concerne un fauteuil roulant multifonctionnel, comprenant une base (1) avec des roues (17), et un dispositif de levage réglable (2) relié au-dessus de la base (1). Le dispositif de levage réglable (2) comprend une plaque d'assise (3), un dossier (4) articulé à une extrémité arrière de la plaque d'assise (3), une plaque de liaison inférieure (5) reliée à la base (1), et une structure de support (6) articulée entre la plaque d'assise (3) et la plaque de liaison inférieure (5). La structure de support (6) comprend un ensemble barre de support avant (61) et un ensemble barre de support arrière (62). Le dispositif de levage réglable (2) comprend en outre un mécanisme d
