Abstract: Based on the hourly precipitation data of 14 national weather stations and 240 encrypted regional automatic weather stations in the north part of Kunlun Mountains from June to August in 2016—2020, the multi-scale temporal and spatial distribution characteristics of summer precipitation in northern Kunlun Mountains are analyzed on the "Quarter-Month-Day-Hour" time scale, with the high mountain area, middle mountain area, low mountain area and plain area divide by the decending altitude ladder. The main conclusions are as follows: (1) In the past 5 years, the average summer precipitation in northern Kunlun Mountains was 358.5 mm, and the frequency of hourly precipitation and hourly heavy precipitation was 301 and 74 respectively. The daily precipitation extreme value of 95.4 mm appeared in the low mountain area, and the hourly precipitation extreme value of 64.0 mm appeared in the plain area. (2) In summer and from June to August, the monthly precipitation, average daily precipitation and hourly precipitation, and hourly precipitation frequency all show the spatial distribution characteristics of "more in the south and less in the north", which decreases with the decrease in altitude. The maximum hourly precipitation is inversely distributed and increases with the decrease of the altitude ladder. The hourly heavy rainfall is more likely to occur in the low-altitude low mountain and plain areas. (3) The diurnal variation characteristics of summer precipitation are significant. The large-value center of hourly precipitation from noon to the first half of the night gradually shifts to low-altitude areas with time, showing a pattern of shifting from south to north. The peak time of hourly precipitaion and the precipitation enhancement period both increase and then extend with the decrease of altitude ladder. The hourly precipitation peaks in the 4 types of regions occur during the day, and the peak value in the low mountain and plain areas mainly occur in the afternoon. It is necessary to pay attention to the short-term heavy rainfall caused by strong convective weather in the low mountain and plain areas in the afternoon, and focus on preventing the occurrence of geological disasters such as flash floods in small and medium-sized rivers, landslides and debris flows caused by short-term heavy rainfall.