The invention discloses a combined type multifunctional electric wheelchair comprising an electric wheelchair, a trailer, a front direction wheel, a back drive wheel, a universal wheel and a movable type direction control device, wherein the direction control device is movably arranged at the front end of an armrest or the upper end of a backrest; when the direction control device is arranged at the front end of the armrest, people can operate the wheelchair by oneself and the trailer at the back side can be used for carrying objects; the direction control device also can be arranged at the upper end of the backrest, and then other people on the trailer can operate the wheelchair; a pneumatic control expansion joint is arranged between the armrest and a front foot stool and is used for adjusting the angle of the backrest, so that the people can sit and lay on the wheelchair; foldable pneumatic control expansion joints, which can be automatically folded and unfolded, are arranged between the front foot stool and a seat, and between a back foot stool and the seat. The combined type multifunctional electric wheelchair, provided by the invention, has the advantages that: the wheelchair has a plurality of functions; the wheelchair can be operated by oneself and also can be operated to move by the other people when the people is old and inconvenient; the wheelchair can be automatically adjusted and folded and can be placed in a trunk of a saloon car when the wheelchair is folded, so that the wheelchair is more practical and humanized.