[Objective] Considering the problems of uneven settlement, salinization, dam piping, and other disasters caused by the difficulty of new land reclamation and drainage in gully areas of loess hilly regions, the drainage design method of a channel land consolidation project was explored to provide reference for drainage design in related fields in the future.[Methods] The Yangjuangou subbasin in Yan'an City, Shaanxi Province, was taken as the study area, based on the design criteria of the stormwater in a small basin. Indoor experimental results were combined with related design specifications. The subsurface drainage method combined gravel and blind ditch, and it was verified by the engineering design through post prototype observation.[Results] ① The new land drainage design had three cross-sectional areas of 1 m×0.5 m, with lengths of 60, 30, and 30 m, and a slope of 6%-10% of the underground blind ditches. The blind ditches were filled with gravel with particle size of 50-80 mm and wrapped with nonwoven geotextile. Blind ditch drainage was collected by the retaining dam in the downstream leeches and was utilized.② Initial monitoring in the field indicated that, in the case of a subrainfall of 54.2 mm, compared with the new land without any engineering measures, the gravel blind ditch drainage project could reduce the increase in soil moisture content and conductivity of new land by 46.81% and 3.61%, respectively.[Conclusion] The drainage design using gravel blind ditch could effectively alleviate the water storage and salinization degree of new land soil in the channel, thereby improving the risk-response capability.