An oil hydraulic equipment including an oil returning valve set with multi-stage throttling control, the oil hydraulic equipment comprising: a machine body defining a pressurized oil collecting cavity , a pressurized oil discharging cavity and an oil returning channel , wherein both ends of the oil returning channel are respectively connected to the pressurized oil collecting cavity and the pressurized oil discharging cavity of said oil hydraulic equipment; and the oil returning valve set comprising: a plurality of throttling valve plugs arranged at an inlet end of the oil returning channel , and controlling the oil in the pressurized oil collecting cavity to flow to the oil returning channel ; and an oil returning valve plug arranged at an outlet end of the oil returning channel , and controlling the flow of oil in the oil returning channel to the pressurized oil discharging cavity ; characterized in that the plurality of throttling valve plugs comprises an inner valve plug and an outer valve plug ; wherein the outer valve plug is loaded with an elastic force of an outer layer elastic element ; wherein the inner valve plug is loaded with an elastic force of an inner layer elastic element ; the inner valve plug being sleeved and arranged in a coaxial concentric manner inside the outer valve plug ; wherein a normally-open draining gap is formed in the plurality of throttling valve plugs, and the normally-open draining gap is used for connecting between the pressurized oil collecting cavity and the oil returning channel . a machine body defining a pressurized oil collecting cavity , a pressurized oil discharging cavity and an oil returning channel , wherein both ends of the oil returning channel are respectively connected to the pressurized oil collecting cavity and the pressurized oil discharging cavity of said oil hydraulic equipment; and the oil returning valve set comprising: a plurality of throttling valve plugs arranged at an inlet end of the oil returning channel , and controlling the oil in the pressurized oil collecting cavity to flow to the oil returning channel ; and an oil returning valve plug arranged at an outlet end of the oil returning channel , and controlling the flow of oil in the oil returning channel to the pressurized oil discharging cavity ; characterized in that the plurality of throttling valve plugs comprises an inner valve plug and an outer valve plug ; wherein the outer valve plug is loaded with an elastic force of an outer layer elastic element ; wherein the inner valve plug is loaded with an elastic force of an inner layer elastic element ; the inner valve plug being sleeved and arranged in a coaxial concentric manner inside the outer valve plug ; wherein a normally-open draining gap is formed in the plurality of throttling valve plugs, and the normally-open draining gap is used for connecting between the pressurized oil collecting cavity and the oil returning channel . a plurality of throttling valve plugs arranged at an inlet end of the oil returning channel , and controlling the oil in the pressurized oil collecting cavity to flow to the oil returning channel ; and an oil returning valve plug arranged at an outlet end of the oil returning channel , and controlling the flow of oil in the oil returning channel to the pressurized oil discharging cavity ; characterized in that the plurality of throttling valve plugs comprises an inner valve plug and an outer valve plug ; wherein the outer valve plug is loaded with an elastic force of an outer layer elastic element ; wherein the inner valve plug is loaded with an elastic force of an inner layer elastic element ; the inner valve plug being sleeved and arranged in a coaxial concentric manner inside the outer valve plug ; wherein a normally-open draining gap is formed in the plurality of throttling valve plugs, and the normally-open draining gap is used for connecting between the pressurized oil collecting cavity and the oil returning channel . <EOS>