Before the Tang Dynasty, there were relatively few types of vegetables in China, mainly including the following categories: 1. Beans: Tofu, soy milk, bean paste, etc. 2. Grain crops: wheat, wheat, oats, corn, etc. 3. Vegetables: Radish, cabbage, lettuce, cucumber, tomato, chili, etc. After the Tang Dynasty, with the development of agricultural technology and the prosperity of trade, the variety of vegetables began to increase, mainly including the following categories: 1 beans: peas, mung beans, black beans, soybeans, etc. 2. Grain crops: wheat, wheat, oats, corn, etc. 3. Vegetables: eggplant, chili, tomatoes, celery, onions, ginger, garlic, cucumber, winter melon, pumpkin, gourd, etc. It should be noted that although there were relatively few types of vegetables before the Tang Dynasty, each vegetable had its own unique planting and eating habits, which had an important impact on the development of ancient Chinese culture and food culture.