The invention discloses a shale gas well simulated reservoir fracture fracturing liquid flowback rate experimental measurement device and method. The shale gas well simulated reservoir fracture fracturing liquid flowback rate experimental measurement device comprises a clamp, a press machine, a thermostat, a constant-speed and constant-pressure pump, an intermediate container, a constant-speed andconstant-pressure pump outlet valve, a fluid inlet valve, a fluid outlet valve, a nitrogen cylinder outlet valve, a nitrogen cylinder and an outlet valve. The method mainly comprises the steps of 1)rock sample preparation, 2) shale physical property parameter testing, 3) testing parameter calculation, 4) fracturing liquid preparation and density testing, 5) testing parameter testing, and 6) shale flowback rate calculation. The shale gas well simulated reservoir fracture fracturing liquid flowback rate experimental measurement device takes into comprehensive consideration the influence of stratum temperature, stratum stress and fluid pressure on shale flowback rate and quantifies influence factors to reflect the shale flowback rate under real stratum conditions and accordingly to providea theoretical basis for shale flowback scheme optimization.