China's special climatic environment has led to the formation of the custom of hot food in China. Hot food can not be touched directly by hand. Cutlery is needed to help you eat. During the warring States period, lacquer ware entered into the food utensils and gradually replaced the bronze ware. When using lacquer ware to carry food, if you use a knife and fork to eat, it will cause a lot of scratches and damage on the surface of the lacquer ware, affecting the beauty of the lacquer ware. Taking advantage of the good elasticity of bamboo, the ancestors of ancient China first made bamboo clips, accumulated experience in using them, and finally evolved chopsticks.
During the warring States period, people gave up knives and forks to use bamboo chopsticks is not mentioned.