A method for controlling an exhaust gas recirculation apparatus for heavy construction equipment comprising: an engine; a turbocharger, in which a turbine rotates by using exhaust gas discharged from the engine, and compresses air, which is supplied to the engine, by a compressor connected to the turbine through a connecting shaft; an intercooler which cools compressed air flowing into the engine; a high-pressure EGR line which is provided with a high-pressure EGR cooler and a high-pressure EGR valve, and connects the exhaust gas discharged from the engine, in a region upstream from the turbine, with the air, which is supplied to the engine, in a region upstream from the intercooler and downstream from the compressor; a hybrid EGR line which is provided with a hybrid EGR valve and a hybrid EGR cooler, and connects the exhaust gas discharged from the engine, in a region upstream from the turbine, with the air, which is supplied to the engine, in a region upstream from the compressor; and a low-pressure EGR line which is provided with a low-pressure EGR valve and a low-pressure EGR cooler, and connects the exhaust gas discharged from the engine, in a region downstream from the turbine, with the air, which is supplied to the engine, in a region downstream from the compressor, the method comprising: performing control by an engine control unit, which receives at least one of a high-load request signal from a driver and a signal informing an entry into a work mode, opens and closes each of the EGR valves (141, 151, 161) of each of the EGR lines (140, 150, 160), in accordance with a number of revolutions (rpm), a vehicle velocity (Vehicle_v), and a torque variation amount; and another control step, wherein the engine control unit, which receives a low-load request signal from a driver, opens the hybrid EGR valve of the hybrid EGR line. an engine; a turbocharger, in which a turbine rotates by using exhaust gas discharged from the engine, and compresses air, which is supplied to the engine, by a compressor connected to the turbine through a connecting shaft; an intercooler which cools compressed air flowing into the engine; a high-pressure EGR line which is provided with a high-pressure EGR cooler and a high-pressure EGR valve, and connects the exhaust gas discharged from the engine, in a region upstream from the turbine, with the air, which is supplied to the engine, in a region upstream from the intercooler and downstream from the compressor; a hybrid EGR line which is provided with a hybrid EGR valve and a hybrid EGR cooler, and connects the exhaust gas discharged from the engine, in a region upstream from the turbine, with the air, which is supplied to the engine, in a region upstream from the compressor; and a low-pressure EGR line which is provided with a low-pressure EGR valve and a low-pressure EGR cooler, and connects the exhaust gas discharged from the engine, in a region downstream from the turbine, with the air, which is supplied to the engine, in a region downstream from the compressor, the method comprising: performing control by an engine control unit, which receives at least one of a high-load request signal from a driver and a signal informing an entry into a work mode, opens and closes each of the EGR valves (141, 151, 161) of each of the EGR lines (140, 150, 160), in accordance with a number of revolutions (rpm), a vehicle velocity (Vehicle_v), and a torque variation amount; and another control step, wherein the engine control unit, which receives a low-load request signal from a driver, opens the hybrid EGR valve of the hybrid EGR line. performing control by an engine control unit, which receives at least one of a high-load request signal from a driver and a signal informing an entry into a work mode, opens and closes each of the EGR valves (141, 151, 161) of each of the EGR lines (140, 150, 160), in accordance with a number of revolutions (rpm), a vehicle velocity (Vehicle_v), and a torque variation amount; and another control step, wherein the engine control unit, which receives a low-load request signal from a driver, opens the hybrid EGR valve of the hybrid EGR line.