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.