In order to make good use of all kinds of biological resources, what methods did scholars put forward in the Spring and Autumn Period and the Warring States Period to protect biological resources and make them sustainable? Guan Zi Ba Guan said, "Although the mountains are close to the beautiful vegetation, there must be a degree in the palace, so hair must be banned." Mencius seems to know something about the natural regeneration ability of forests. He suggested: "If an axe falls into the forest in time, the wood and wood will be useless." As we all know, the important feature of biological resources is that they can be regenerated and updated. A mature forest community can bear a certain amount of selective cutting and recover quickly as long as it does not cut too frequently. This famous saying of Mencius advocates the rational use of resources and has always paid attention to the dynamic growth and decline balance of forests. Xunzi also put forward that "it is not too late to cut and grow." "When the vegetation is lush, the axe does not enter the forest and does not grow." Further elaborated Mencius' thought of resource protection.