The invention discloses a multi-point axial additional belt wheel installation structure, which is characterized in that an additional belt wheel is installed on a shock absorber by utilizing an installation bolt; a fan shaft is installed on the additional belt wheel by utilizing the installation bolt; the additional belt wheel is provided with a first group of installation threaded holes and a second group of installation threaded holes; the first group of installation threaded holes are all distributed on a wheel rim loop of the additional belt wheel; the second group of installation threaded holes are all distributed on the wheel rim loop of the additional belt wheel; and the first group of installation threaded holes are symmetrically matched with the second group of installation threaded holes. The advantages are that normal power transmission can be satisfied; the design requirements of reliable parts and convenient installation are satisfied; the convenience of maintenance of an engine can be solved effectively; and when the fan shaft is automatically assembled by the whole factory, the problems of the installation rhythm of a factory and the waste of bolts are solved.