Taobao watermelon is expensive because the products are sold out of season, and the whole pricing has increased. The whole trend, watermelons are expensive, not just Taobao watermelons. According to the concept of economics, we can know that the price of goods has a great relationship with the relationship between supply and demand. The more supply and demand, the cheaper the price of goods. The less supply and demand, the more expensive the goods are. This concept is also very applicable to this year's watermelon. The price of watermelons has risen this year, not only in areas where watermelons are imported from other places, but also in places where many watermelons are supplied. In addition to the quality of watermelon, the price of watermelon has risen, and the brand premium has also affected the price of fruit. With the improvement of people's quality of life, people no longer consider quenching their thirst when buying melons, but prefer red-pulp melons. This invisibly increases the cost of getting goods and labor, thus making the price of watermelon as a whole high. The last reason that affects the price of watermelon, which is also the main reason, is that the planting area of watermelon and the number of growers have decreased.