The invention discloses a domestic sewage treatment process. The domestic sewage treatment process comprises the following steps that 1, domestic sewage is discharged into a grating well through a discharge pipeline embedded underground; 2, the domestic sewage in the grating well is pumped into a regulating reservoir through a first lift pump, and the quality and quantity of the domestic sewage are balanced in the regulating reservoir; 3, the degraded domestic sewage in the regulating reservoir is pumped into the inner cavity of a machine body through a second lift pump, then a fan operates and performs exhausting towards an aeration head, the aeration head performs aeration for 4-6 hours, then the fan is stopped, and the domestic sewage in the inner cavity of the machine body is subjected to standing and sedimentation for 2 hours; 4, high-phosphorus sewage execution time and low-phosphorus sewage execution time are determined according to the actual domestic sewage discharge situation; 5, at the high-phosphorus sewage execution time, a first electric water discharging valve is turned on, a second electric water discharging valve is turned off, a discharge pump is started to input supernate of the domestic sewage into a phosphorous removal filtration device, and finally the treated domestic sewage is discharged into a sampling well and finally flows into a pollutant-holding water body.