基于五运六气理论，从五运、六气及客主加临等方面分析 2021 年运气特点，发现 2021 年水运不及，上半年多湿，下半年多寒。 从运气相合的角度看应以气为主，运次之。 由六气而言，初之气需注意息风平肝健脾；二之气应注意泻南补北；三之气应利湿健脾；四之气宜清热健脾利湿补肾；五之气应清肺疏肝；终之气应温肾健脾助心阳。

Based on the theory of five evolutive phases and six climatic factors， the characteristics of evolution phases and climate in 2021 were analyzed from the aspects of the five evolutive phases， six climatic factors， and guest climatic qi adding to fixed host qi. It was found that the water evolutive phase in 2021 would be less，and it would be more humid in the first half year and colder in the second half. From the perspective of the convergence of evolution phases and climate， the latter should be the main focus， followed by the former. In terms of the six climatic factors， in the first stage it should be emphasized to dispel the wind， calm the liver and invigorate the spleen； in the second stage it should be focused to purge the south and replenish the north； in the third stage promoting diuresis and invigorating the spleen should bedone； in the fourth it would be beneficial to clear heat，invigorate the spleen，promote diuresis and nourish the kidney；in the fifth it should be helpful to clear the lungs and sooth the liver； in the final stage it would be important to warm the kidney， strengthen the spleen and help the heart yang.