Abstract:The highway, hydraulic engineering and municipal departments often encounter the problems of storm runoff calculation. The practitioners in the different industries use the different calculation formulas and the selection for recurrence period is also quite different, which create the problems to the practitioners. According to the analysis on the differences and similarities of storm runoff calculation in the different industries, it can be known that the calculation principles of storm runoff in the different industries are still the same. Only based on each professional characteristics and requirements, the adaptive adjustment is made in the aspects of formula form and parameter selection.