The invention relates to an emergency treatment device for a tandem type mixed power electric automobile, in particular to an emergency auxiliary drive device for the tandem type mixed power electric automobile. When a generator and an electric motor etc. is out of work, through the invention, the torque can be transferred directly from the generator to driving wheels, which contributes to emergency recovery of all automobile functions. The device which consists of a slide bar, a slide bar connecting piece, a one-way clutch and a free joint is characterized in that one end of the slide bar I (2) and the slide bar II (3) are connected by the slide bar connecting piece (5) with each other, the other end of the slide bar I (2) is connected by the free joint (1) with the generating set in the tandem type mixed power electric automobile, the other end of the slide bar II (3) is provided with the one-way clutch (6) by which the torque can be transferred from the generating set to the driving wheels and which is connected by the free joint II(4) with the generator, the slide bar connecting piece (5) and the one-way clutch (6) are both provided with axial positioning.