Nanwangdian watermelon is a specialty of Nanwangdian Town, Dingtao County, Heze City, Shandong Province. Nanwangdian watermelon is deeply welcomed by the market and loved by consumers with its good reputation and excellent quality. In recent years, it has been exported to Tianjin, Shanghai and Jiangsu.

Wang Lou Administrative Village is the earliest place to grow watermelons in Nanwangdian Town, and it is also the largest watermelon planting village in the town now. Many melon farmers are witnesses to the development of local watermelon industry. In the process of watermelon production, the township strictly implements technical regulations, and focuses on agricultural, physical and biological pest control, explicitly prohibiting the use of high-residue pesticides. At the same time, it promotes the application of a large number of decomposed high-quality organic fertilizers, the implementation of soil testing and formula fertilization, and the auxiliary application of inorganic fertilizers such as ternary compound fertilizer and potassium diammonium phosphate, effectively controlling the application amount and residue of pesticides and fertilizers, and ensuring the pollution-free and pure natural quality of products. In August, 26, Nanwangdian watermelon passed the certification of "producing area of pollution-free agricultural products" by the Provincial Department of Agriculture, and passed the product verification of "pollution-free watermelon" by the Ministry of Agriculture in October. As the saying goes, "High standards bring high quality, and high quality brings high income", Nanwangdian watermelon quickly gained a foothold in the market by virtue of its unique advantages in time and excellent product quality, which not only made a large number of melon farmers rich, but also made Nanwangdian Township, a small town with a population of only over 3,, have the reputation of "hometown of watermelons" since then.

The watermelon planting area in Nanwangdian Town has exceeded 15, mu, and the annual output value has reached 13 million yuan. As a new force in Heze fruit market, it has won the favor of local consumers by virtue of its "early listing and good taste". In recent years, it has been exported to Shanghai, Lanzhou and other places, and played a "duet" belonging to Heze in the melon and fruit market with Dongming Watermelon.