The present invention relates to a photovoltaic tracker, and in particular to a solar photovoltaic component tracking apparatus and an installation method therefor. The apparatus comprises upright posts; a main shaft is arranged between two adjacent upright posts; a photovoltaic component is arranged on the main shaft; two adjacent main shafts are connected via a connecting shaft; the connecting shaft is fixed on the upright post; the upper end face of the upright post is an upright post installation face; a through-hole is arranged on the upper portion of the upright post; and the connecting shaft is installed in the through-hole via a bearing structure. The through-hole is arranged on the upright post, and the connecting shaft is installed in the through-hole via the bearing structure. Pre-installation is firstly performed, and then the whole upright post combination is hammered integrally via a pile hammer. The present invention provides a solar photovoltaic component tracking apparatus and an installation method therefor, which is easy to install, has a simple structure and can reduce the difficulty and requirements of field installation and shorten the period and cost of installation. The technical problem existing in the prior art that a photovoltaic component tracker has lots of members, a long installation period, high difficulty in field installation and lots of field installation requirements is solved.