Photovoltaic curtain wall installation method based on BIM

The invention relates to a BIM-based photovoltaic curtain wall installation method. The method comprises the following steps: arranging an installation auxiliary device; the method comprises the following steps: establishing a main body structure and a photovoltaic curtain wall BIM model, sequentially numbering rear embedded parts, keels, photovoltaic accessories and curtain wall photovoltaic panels of the photovoltaic curtain wall model, and determining installation position coordinates of installation positions of the rear embedded parts, the keels, the photovoltaic accessories and the curtain wall photovoltaic panels; then, the main body structure and the photovoltaic curtain wall BIM model are divided into a plurality of model blocks, the position coordinates of each model block are calibrated, and rear embedded parts, keels, photovoltaic accessories and curtain wall photovoltaic panels which belong to the model blocks and need to be installed and the installation dependency relation of the rear embedded