Portable device for helping vehicle get out of difficult situation

The invention discloses a portable device for helping a vehicle get out of a difficult situation. The device comprises a square base plate, wherein an upper groove and a plurality of infusion chambersare formed in the upper end surface of the base plate, a plurality of inner shafts which are parallel to one another and penetrate into the infusion chambers are rotationally connected in the upper groove, a round roller is fixedly connected to each inner shaft, and a screw rod is fixedly connected to the portion, located in each infusion chamber, of each inner shaft. The device has the advantages that, the vehicle is started to enable wheels to pump fluid into a grid bag, the grid bag expands and extends out of a lower groove to abut against the bottom of a pit, the wheels continue to rotateuntil a current-conducting plate is bent and makes contact with a first polar plate to be electrified, the electrorheological fluid in the grid bag is in an electric field environment to generate extremely strong shear streng