Abstract: Shanghai is located in the impacting plain of the Yangtze River Delta, which is a typical plain river network area. And the construction of large-scale parks and green space was concentrated on the demolition sites of suburbs with plain river network, which also brings special difficulties to the greening construction. Taking the first phase of Maqiao Forest Sports Park in Minhang District as an example, this paper focuses on the analysis of the difficulties faced by the greening construction of large-scale parks in suburbs, and puts forward the engineering construction technology aiming at the site difficulties, counter-season construction and large-scale seedling transplantation, so as to provide reference for the construction of parks with same type in Shanghai.