Based on the theory of five evolutive phases and six climatic factors (Wuyun Liuqi), the author analyzed the clinical characteristics of climate in 2018 from several aspects such as five evolutive phases, six climatic factors and guest climatic qi adding to fixed host qi, and found that only at the fifth stage of 2018 it feels comfortable; at the first stage warm disease should be prevented ; at the second and third stage the syndrome of cold enveloping fire should be paid attention to, therefore interior heat should be cleared as cold pathogen should be dispelled in the meantime; at the fourth and last stage we should pay attention to fortify the spleen and disinhibit dampness. At the same time, the prevention and cure of disease should be application of bitter to achieve dryness and warmth.