The invention discloses a reclaimed water source circulating wastewater recycle system which includes a reclaimed water source circulating wastewater pool, an ozone reaction system, a biological activated carbon reaction system, an intermediate water tank, a dosing system, a settling pond, a hydrochloric acid dosing device, a regulating water pond, a ultrafiltration system, a reverse osmosis water supply tank, a reverse osmosis antiscalant dosing device, a reverse osmosis system, a demineralized water tank, a nanofiltration feedtank, a nanofiltration antiscalant dosing device, a nanofiltration system and a nanofiltration concentrated water tank. The reclaimed water source circulating wastewater recycle system can effectively reduce organic matters difficult to degrade in the reclaimed water source circulating wastewater and improve the recovery rate of the reclaimed water source circulating wastewater.