Sweet potato syrup is a kind of syrup in Guangdong, China, which is a special snack of Han nationality. Mainly popular in South China and Hong Kong. Its preparation method is mainly made of sweet potato, sliced sugar or rock sugar and boiled water, and ginger slices can be added in winter to drive away the cold.

Sweet potato syrup is thin, but it is very sweet because of the addition of sugar blocks. The preparation method of sweet potato syrup is very simple. In the past, sweet potato was very common in southern China, and it was easy to grow, so it became the most common food for the local underclass.

In the past, the sweet potato in South China was only yellow. Now, because of the purple sweet potato imported from Japan and the fact that Hong Kong people like to cheat on their diet, today's sweet potato syrup has become colorful.