Using EAR5 to reanalyze the meteorological data, the basic characteristics and similarities and differences of the high and low altitude circulation situation, front structure, front position, and related element fields of the two Kunming quasi-stationary front weather processes are analyzed. The results show that the existence of the blocking situation in the middle and high latitudes is the background circulation formed by the Kunming quasi-stationary front. When the heating and cooling masses are strong and evenly matched, it is more conducive to the maintenance of the front. When the cold air is strong, the front will move westward, crossing the terrain of the Yunnan-Guizhou Plateau; otherwise, the front will move eastward. When the front is maintained on the east side of the plateau terrain and the cold air is blocked by the terrain, the movement of the front is slow, and the front area is most obvious at this time. When the front is maintained on the east side of the terrain, the maximum horizontal shear of the wind field, the maximum horizontal gradient of temperature and the dense area of equivalent potential temperature describe almost the same front position. During the two cold wave outbreaks, the cold air can only be maintained to around 700hPa, and the horizontal wind field is also low-altitude shear below 600hPa, indicating that the Kunming quasi-stationary front is a shallow system. The Kunming quasi-stationary front is different from the general cold front. In two cases, the low altitude behind the Kunming quasi-stationary front is a wet area, and whether the water vapor before the front is sufficient depends on the location of the south branch trough.