The invention provides a light and portable electric wheelchair. The front parts of lower cross beams of vehicle frames are provided with low-rotation-resistance damping front wheel structures, the front parts of the lower cross beams of the vehicle frames are connected with front shaft sleeves by welding, front wheel rotating shafts are arranged in the front shaft sleeves, the lower ends of the front wheel rotating shafts are connected with the upper ends of front forks, and the upper part of each front wheel rotating shaft enters the corresponding front shaft sleeve and is sequentially connected with a low stamping outer shell roller pin bearing, a disc spring, a polyurethane elastic pad, a plane thrust ball bearing, an upper stamping outer shell roller pin bearing and an anti-support retaining piece in a penetrating mode; two sets of four folding support rods are rotatably connected between the left vehicle frame and the right vehicle frame, two linkage gears meshed with each other are arranged on folding connection frames, each linkage gear is provided with a positioning pin hole, and a pull rod is connected between the inner ends of the folding connection frames of the two sets of folding support rods. The light and portable electric wheelchair has the advantages of having the low-rotation-resistance damping front wheel structures and being good in damping effect, small in size after being folded, reliable and light, the total weight is controlled within 23 kg, and the performance indicators reach or exceed the national standard GB/T12996-2009.