The invention discloses an electromagnetic type quick gear-shifting mechanism omitting the gear selecting process and a use method thereof. The electromagnetic type quick gear-shifting mechanism comprises gear-shifting fingers, gear-shifting fork shafts, proportion electromagnets, signal shafts and gear-shifting position sensors, wherein one gear-shifting finger is assembled on each gear-shifting fork shaft, and is driven by one pair of proportion electromagnets; when one proportion electromagnet is electrified, the gear-shifting finger is pushed to move forwards, so that the forward gear or neutral position operation of a speed changer is realized; each gear-shifting fork shaft is fixedly provided with one signal shaft which is fixedly provided with one magnet and corresponds to one gear-shifting position sensor; and when in gear shifting, the signal shafts move along with the gear-shifting fork shafts, and the gear-shifting position sensors detect the positions of the signal shafts in real time, so that the gear information is determined. In the electromagnetic type quick gear-shifting mechanism, the gear selecting process is omitted, and the switching time between any two gears is consistent, so that the gear shifting speed is greatly improved.