The invention discloses a process method and equipment for constructing a ground source heat pump well. The process method comprises the following steps of: drilling a testing well by adopting a casing following pipe drilling underground construction process, testing thermophysical properties of local rock by adopting a rock physical property tester, digging out gang of wells in a number calculated according to the tested thermophysical properties by adopting a casting following pipe drilling process, feeding U-shaped pipes into the gang of wells by adopting a quick pipe feeding process, connecting a plurality of wells in parallel into a group by adopting a reversed return system, connecting each group into a ground source water loop system according to direct return, introducing a return water supply main pipe into a main engine room, performing multiple pressing sequentially until the quality requirement is met, and finishing the construction. The process method is particularly suitable for difficult construction geological conditions with hard rock such as granite and the like; safe, high-efficient, quick and convenient construction is ensured by applying various advanced special construction processes and equipment; the consumption of manpower and materials, and labor intensity are reduced; the construction and preparation time is saved; the comprehensive construction cost is reduced; and the actual project application effect is good.