The sweet potato at Qiaotou Bridge tastes sweet. The most important thing is that the pulp has no hard core, and it tastes soft and glutinous, but it is not choking. Especially the cooked sweet potato, which can be eaten with a spoon, is also called "ice cream sweet potato". Durian sweet potato tastes hard, and many people can't accept the taste and smell, so Qiaotou sweet potato is more delicious than durian sweet potato. Qiaotou Se-enriched sweet potato grows in Chengmai County, northwest of Hainan Island, located in the eruption coverage area of ancient crater, with unique geographical climate and abundant sunshine, with sunshine of more than 3,000 hours per year.