[Objective] The farmland works planning and design under water storage pit irrigation is studied to solve the problems of future promotion and application, in order to lay the foundation for promoting large-scale and industrialized development of water storage pit irrigation in hilly regions.[Methods] Taking the water-saving irrigation demonstration garden in Taigu County, Shanxi Province as an example, water storage pit irrigation farmland works planning and design was carried on, by reference to micro-irrigation projects and low-pressure pipeline irrigation projects.[Results] Parallel rainwater harvesting ditches were adopted in land leveling. Each tree was allocated 4 pits, the water storage pits were 40 cm deep. The pit diameter was 30 cm, under the detention capacity of rainfall runoff standard of 24 hours maximum rainstorm volume occurred every 5 years. Every pit was decorated with a baseplate, a solid wall and a head cover as a whole. The annular grooves were 20 cm deep, 30 cm wide, with a radius of 50 cm. The pipe network included three levels:main pipes, branch pipes and laterals, made of polyethylene. The annular four-outlets lateral was around the tree; the calculation methods for the pipe diameters, lengths, and import working heads and the determination method for the working system were provided.[Conclusion] The planning and design of land leveling technology, water storage design and layout technology, and low-pressure pipeline system design technology can meet the special demand of water storage pit irrigation in hilly regions.