Abstract: Using the CloudSat tropical cyclone crossing dataset from 2006 to 2010 and dividing the data into different evolutionary stages according to wind speed, the cloud, precipitation, and thermal structure characteristics of typhoons at different stages in the eastern Pacific are comprehensively analyzed. The results show that radar reflectivity has opposite distributions above and below 5 km in height, and the echo intensity and top height decrease along the radial direction. Large differences appear between the distribution of different types of clouds along the radial and vertical directions, and the vertical scale and occurrence probability of deep convective clouds are always large. The effective radius, distribution width parameter, and ice water content decrease but the particle number concentration increases as the height increases. Each ice cloud parameter and the rainfall rate decrease gradually along the radial direction. The rainfall rate at each stage in summer is generally larger than that in autumn, and along the latitudinal direction in each season, it varies within different stages. The rainfall rate in the inner core area follows a nearly exponential distribution and is sensitive to warmer sea surface temperatures, and its scatter plot with radar reflectivity converges in three regions. There is a hot core structure at 5-10 km in height in the inner core area; below it a wet core area exists, whereas an area with a larger anomaly in the relative humidity corresponds to the cirrus canopy at the top of the typhoon. Atmospheric stratification is convectively stable above 4.5 km in height at each stage; below that, it varies between stages, and the pseudo-equivalent potential temperature decreases along the radial direction.