With the development of "the Belt and Road", the trade of various countries has become more and more frequent, and the container transportation volume of various ports has continued to grow and develop. With the continuous development, Shanghai Port has been promoted to the world's largest container throughput port, and had a a pivotal position in China's import and export ports of goods.However,in the rapid development, the market competition is becoming more and more fierce. There are also many problems to be solved in Shanghai Port. This paper explores the development of Shanghai Port Sea-Rail Combined Transport.Sea-rail combined transport is currently the more advanced mode of transportation in the world, but it needs a lot of support and involves a wide range of aspects, so it also faces great challenges. However, the advantages of sea-rail combined transport are not only to reduce transport costs, shorten transport time, simplify the transport process, but more importantly, it is greener and more environmentally friendly than general transportation, which will become the future development trend of multimodal transport in China. This paper analyzes the development status of sea-rail combined transport in Shanghai Port, analyzes and discusses the necessity and development trend of the development of sea-rail combined transport, explores the bottlenecks of it's existence, and proposes corresponding improvement suggestions, hoping to bring Shanghai Port Sea-rail combined transport some inspiration.