In recent years, the development needs of new industries and new formats represented by green development have been continuously released, resulting in huge market potential. Standardized design, factory production, assembly construction, reducing building energy consumption, improving construction efficiency... Assembled buildings create a "green future". In 2020, the prefabricated construction industry in Changsha achieved the "double thousand" development goal of annual output value exceeding 100 billion and area exceeding 10 million, becoming another 100 billion level industry. The prefabricated construction industry has become a new force, galloping in the industrial and economic battlefield of Changsha.