Abstract: In the process of plant growth and development,it will definitely encounter the influence of many unfavorable factors.These unfavorable factors include extreme environments such as high salt,cold damage,drought and disease.These extreme environments are collectively called adversity.The leaf is the most susceptible organ in the plant,and its morphological structure is most likely to change with different environmental conditions to adapt to the environment.This study was reviewed the epidermal structure,stomatal and various tissue responses of plants under stress,and the degree of damage they showed,providing a theoretical basis for improving the plant′s stress resistance and breeding resistant varieties.