1. By the Song Dynasty, China's navigation technology had developed greatly, and inventions such as bulkhead and Sina appeared, which greatly promoted navigation.
2. Commerce and its prosperity in Song Dynasty. Both Song Taizu and Emperor Taizong ordered the encouragement of business activities, and business almost reached its acme in the Song Dynasty.
Precious metals are used as currency in China. During the Southern Song Dynasty, there were no large-scale precious metal deposits in the ruling areas, and Japan, Nanyang and other places with more precious metal production had to be transported by sea, which promoted the rise of maritime trade.
4. As Xixia, Mongolian Empire and Ottoman Empire successively cut off the communication between China and Europe, and imposed high tax rates on businessmen, land trade was greatly suppressed. In order to transport silk, porcelain, spices and other goods to Europe in exchange for high profits, merchants had to take water instead, which led to the prosperity of the Maritime Silk Road.
The above is my answer to the reasons for the rise of the Maritime Silk Road (which has been adopted).
You can briefly introduce the Maritime Silk Road first, and then write down the reasons, development, influence and results of its rise. We can finish it.