Quick release type fixing device of exercise bicycle

The utility model discloses a quick release type fixing device of an exercise bicycle. The quick release type fixing device of the exercise bicycle comprises a stationary shaft and a quick release unit, wherein the stationary shaft is uprightly provided with a displacement ditch in a running-through manner; the quick release unit comprises a spanner pressing plate, a moving shaft and a quick release spanner. According to the quick release type fixing device of the exercise bicycle, mainly, the moving shaft is arranged in the displacement ditch of the stationary shaft in the running-through manner and can be further slid relative to the stationary shaft; the quick release spanner is arranged at the upper half part of the moving shaft in a pivoting manner, so that the quick release spanner can be rotated relative to the moving shaft; the quick release spanner can prop against or be separated from a spanner sliding block. When the quick release spanner is separated from the spanner sliding block, the moving shaft can be slid in the displacement ditch; when the quick release spanner props against the spanner sliding block, the moving shaft is fixed at the specific position of the stationary shaft; therefore, a user is quick and further labor-saving to adjust the front-back position of the moving shaft.