The city of Jambi is the center of Jambi Provincial Government, demanding the city to keep growing with all kinds of infrastructure facilities and infrastructure supporting activities. But recently the city of Jambi has been flooded with flooding problems, and some areas have been flooded by rain for long periods. This study aims to perform rain analysis plan and to know the nature of rain intensity for design of infrastructure of water resources in jambi city. The results of this study explain the pattern of rainfall in the city of Jambi is Log Pearson III, rainfall plan repeat period (T) for 2 Years = 52,11 mm, 5 Years = 65.23 mm, 10 Years = 71,16 mm, 25 Years = 73,04 mm, 50 Years = 79,20 mm, 100 Years = 81,37 mm and Feeling Mononobe Method with rainfall characteristic in Jambi City for 2 year return period is 18,06 . t-2/3, 5 years is 22.61 . t-2/3, 10 years is 24,67 . t-2/3, 25 years is 25,32 . t -2/3, 50 years is 27,46 . t -2/3, and 100 years is 28,21 . t -2/3.