The invention relates to a circulating sand-liquid recovery system and a recovery method. The circulating sand-liquid recovery system at least comprises a fracturing truck set and a sand-liquid buffer tank, wherein an inlet of the top of the sand-liquid buffer tank is connected to a liquid outlet of a wellhead by a pipeline; an outlet of the bottom of the sand-liquid buffer tank is connected to a tee joint by a valve; one end of the tee joint is connected to a vibrating screen by a sand pump; an outlet of the vibrating screen is connected to a sand storage tank; the other end of the tee joint is connected to a water feeding manifold by a first valve; the water feeding manifold is connected to a mixing sand tank by a water feeding pump; an outlet of the mixing sand tank is connected to an inlet of the fracturing truck set; and an outlet of the fracturing truck set is connected to a liquid inlet of the wellhead by a pipeline. The circulating sand-liquid recovery system and the recovery method have the beneficial effects that sand returning in a sand blasting perforation working process is reused in stratum, the usage cost is greatly reduced, the treatment link and cost of recycling liquid and sand in a sand blasting perforation working process are avoided, the production schedule is accelerated, and the pressure to environmental protection from fracturing construction is reduced.