Seabed data center of HDPE pipe gallery and construction method

The invention provides a seabed data center of an HDPE pipe gallery and a construction method, and is suitable for the field of seabed data centers. The seabed data center of the HDPE pipe gallery comprises a pipe gallery body and a supporting base, a plurality of data bins are evenly distributed on the two sides and the top face of the pipe gallery body, the data bins are connected with the pipe gallery body through flexible connectors, the bottoms of the data bins on the two sides of the pipe gallery body are fixed to the supporting base through brackets, and the other data bins are directly fixed to the top face of the pipe gallery body through brackets; the construction method comprises the steps that the HDPE pipe gallery unit bodies and the seabed data bins are installed in the land area, the foundation trenches and the positioning steel pipe piles are constructed, the HDPE pipe gallery unit bodies are transported on the land, transported on the sea, secondarily immersed, connected through flanges, and