Vehicle body top cover of new energy passenger car

The invention relates to a vehicle body top cover of a new energy passenger car; the top cover comprises a top cover main body, the top cover main body is integrally formed by adopting a composite material, an overhead air conditioner base, an overhead power battery box body fixing tray and a skylight mounting spigot are integrated on the top cover main body, and the composite material is of a three-layer sandwich structure and comprises an outer surface layer, a sandwich layer and a bottom layer. The outer surface layer and the bottom layer are both of a carbon fiber material, a glass fiber material or a fiber structure formed by alternately laying the carbon fiber material and the glass fiber material, and the sandwich layer is one of rigid foam, PET (Polyethylene Terephthalate) or a honeycomb material. According to the invention, the integrated design and molding of each component mounting structure and the top cover structure can be realized, so that the bearing capacity of the composite top cover structu