The invention relates to a solar energy receiving equipment device assembly method, in particular to a four-season sunlight receiving rack assembly method. A solar cell panel assembly and a turning rack flat plate can swing in the east-west direction, and the turning rack flat plate can overall swing in the south-north direction. According to the four-season sunlight receiving rack assembly method, a machine base barrel, the solar cell panel assembly, a worm motor, the turning rack flat plate, a north hydraulic cylinder, a south hydraulic cylinder and a vertical tracker are included. As the improvement, the overall assembly process comprises the four steps of mounting of the turning rack flat plate 60, mounting of the north hydraulic cylinder 70 and the south hydraulic cylinder 80, mounting and regulating of a worm 51 and a swing worm wheel 52 and mounting of the solar cell panel assembly 20. The solar cell panel assembly 20 can controllably swing on the turning rack flat plate 60 in the east-west direction, the solar cell panel assembly 20 can be flexibly regulated along with the turning rack flat plate 60 in different longitudes and dimensionalities and in two spaces, and mounting from bottom to top is stable, convenient and fast.