An exhaust circulation apparatus comprising: an internal combustion engine which is a spark ignition four-stroke reciprocating engine; homogeneous lean combustion means for performing homogeneous lean combustion in a predetermined lean-burn region; stoichiometric combustion means for performing stoichiometric combustion in which a combustion air-fuel ratio of the internal combustion engine is a theoretical air-fuel ratio in a stoichiometric burn region that is a region on a high-load side relative to the lean-burn region; an EGR apparatus for performing EGR that recirculates a portion of gas that flows through an exhaust system of the internal combustion engine to an intake system; and control means for controlling the EGR apparatus based on an operating condition of the internal combustion engine, wherein the internal combustion engine comprises a turbo-supercharger having a turbine that is disposed in an exhaust passage and a compressor that is disposed in an intake passage; the EGR apparatus includes a low-pressure loop EGR apparatus that recirculates gas that flows through the exhaust passage on a downstream side of the turbine to the intake passage at a position on an upstream side of the compressor; and a high-pressure loop EGR apparatus that recirculates gas that flows through the exhaust passage on an upstream side of the turbine to the intake passage at a position on a downstream side of the compressor; when performing the homogeneous lean combustion, the control means controls the low-pressure loop EGR apparatus to perform EGR while not controlling the high-pressure loop EGR apparatus; and when performing the stoichiometric combustion, the control means controls both of the high-pressure loop EGR apparatus and the low-pressure loop EGR apparatus to perform EGR. an internal combustion engine which is a spark ignition four-stroke reciprocating engine; homogeneous lean combustion means for performing homogeneous lean combustion in a predetermined lean-burn region; stoichiometric combustion means for performing stoichiometric combustion in which a combustion air-fuel ratio of the internal combustion engine is a theoretical air-fuel ratio in a stoichiometric burn region that is a region on a high-load side relative to the lean-burn region; an EGR apparatus for performing EGR that recirculates a portion of gas that flows through an exhaust system of the internal combustion engine to an intake system; and control means for controlling the EGR apparatus based on an operating condition of the internal combustion engine, wherein the internal combustion engine comprises a turbo-supercharger having a turbine that is disposed in an exhaust passage and a compressor that is disposed in an intake passage; the EGR apparatus includes a low-pressure loop EGR apparatus that recirculates gas that flows through the exhaust passage on a downstream side of the turbine to the intake passage at a position on an upstream side of the compressor; and a high-pressure loop EGR apparatus that recirculates gas that flows through the exhaust passage on an upstream side of the turbine to the intake passage at a position on a downstream side of the compressor; when performing the homogeneous lean combustion, the control means controls the low-pressure loop EGR apparatus to perform EGR while not controlling the high-pressure loop EGR apparatus; and when performing the stoichiometric combustion, the control means controls both of the high-pressure loop EGR apparatus and the low-pressure loop EGR apparatus to perform EGR.