Chen Zhenlong was born in Changle County, Fuzhou City, Fujian Province. He was admitted as a scholar when he was young. However, with the sharp increase of population in the late Ming Dynasty and the difficulty of imperial examinations, Chen Zhenlong followed the strong business atmosphere in southeast provinces and went to Nanyang (Southeast Asia) "between Fujian Province and Luzon (Philippines)" to do business.

After arriving in the Philippines, Chen Zhenlong, who had eaten for most of his life, ate sweet potatoes for the first time. This sweet and greasy magical species immediately caught his attention. Chen Zhenlong thought of the shortage of food in his hometown, and there were often various droughts and floods that affected the harvest. When many elders had a hard life because of food shortage, he wanted to bring this "species" back to China.

Chen Zhenlong wants to bring this large-yield and delicious species back to China, but the idea is always an idea and it is very difficult to implement. At that time, the Spaniards were also very sophisticated, "it was rare to stay away from China people", and customs clearance at all levels was strengthened. Marco Dragon failed to smuggle many times, and was later listed as "the object of strict investigation" by the Spanish.

Until Marco the Year of the Loong was nearly 50 years old, his will to save people from fire and water became stronger. After many days of meditation, he finally came up with a good idea. 1593, after Chen Zhenlong bribed local aborigines to get sweet potato vines, he twisted them into water ropes and coated them with soil. After crossing the checkpoint, after seven days and seven nights of bumpy sailing, I finally brought the sweet potato vine back to Fuzhou from the Philippines.