The invention provides a curtain wall with a glass and aluminum honeycomb plate bilayer structure, which comprises a main keel, a secondary keel, glass, a connecting assembly, a built-up connecting assembly, an aluminum honeycomb curtain wall main keel, an aluminum honeycomb curtain wall secondary keel, an aluminum honeycomb plate, a lamp assembly and a sealing and adhering assembly, wherein the main keel, the secondary keel and the glass form a hidden-frame glass curtain wall, and the aluminum honeycomb curtain wall main keel, the aluminum honeycomb curtain wall secondary keel, the aluminum honeycomb plate and the lamp assembly form an aluminum honeycomb plate curtain wall for decoration; and a main connecting piece of the connecting assembly penetrates through a gap between adjacent glass and is welded with the main keel, and an aluminum honeycomb plate curtain wall keel system is fixedly connected with the main keel of the glass curtain wall through the built-up connecting assembly. The construction method mainly comprises ten steps of installation of the glass curtain wall keel, installation of the main connecting piece, installation of the aluminum honeycomb plate curtain wall keel and the like. The curtain wall provided by the invention has the advantages of firm and stable structure, strong wind resistance, convenience in modeling and good decorative effect, and the construction method of such decoration project is expanded.