In order to explore the impact of landfall typhoons in China's coastal areas, based on the typhoon data and socioeconomic data from 1949 to 2020, M-K trend analysis, R/S analysis, wind and rain analysis, and disaster quantification and other research methods were used to comprehensively analyze the temporal and spatial changes, wind and rain characteristics and disaster situation of landfall typhoons in China. The research results show that the number of typhoons landing in China is decreasing, and the duration is prolonged. In terms of intensity, there is a situation of "weak decrease and strong increase", and the landfall sites are shifted to the east and north. Both the wind speed and precipitation of the landfall typhoon showed an upward trend. Considering the maximum value, it was found that the wind speed and precipitation showed a significant increase trend. The impact of typhoon has gradually evolved into a disaster pattern that has shifted from the secondary industry to the primary and tertiary industries. The research results can provide data support and scientific basis for reducing the economic losses of typhoon disasters.