A power assembly, comprising: a housing, wherein an oil pan for storing lubricating oil is disposed on the housing; a first drive motor and a first speed reducer that are disposed inside the housing, wherein the first drive motor comprises a first stator and a first rotor, and the first speed reducer is connected to the first rotor; a second drive motor and a second speed reducer that are disposed inside the housing, wherein the second drive motor comprises a second stator and a second rotor, and the second speed reducer is connected to the second rotor; a first oil pump and a second oil pump, wherein an oil inlet of the first oil pump is connected to the oil pan, and an oil inlet of the second oil pump is connected to the oil pan; a first oil path disposed inside the housing, wherein the first oil path is connected to an oil outlet of the first oil pump, and the first oil path is configured to supply oil to the first stator and the second stator; a second oil path disposed inside the housing, wherein the second oil path is connected to an oil outlet of the second oil pump, and the second oil path is configured to supply oil to the first rotor and the second rotor; and a third oil path disposed inside the housing, wherein the third oil path is connected to at least one of the first oil path and the second oil path, and the third oil path is configured to supply oil to the first speed reducer and the second speed reducer; wherein the power assembly further comprises a heat exchanger, wherein the first oil pump is connected to the first oil path through the heat exchanger, and the second oil pump is connected to the second oil path through the heat exchanger; characterized in that a first heat exchange branch and a second heat exchange branch are disposed in the heat exchanger, the first heat exchange branch is connected between the first oil pump and the first oil path, the second heat exchange branch is connected between the second oil pump and the second oil path, and the first heat exchange branch and the second heat exchange branch are independent of each other. a housing, wherein an oil pan for storing lubricating oil is disposed on the housing; a first drive motor and a first speed reducer that are disposed inside the housing, wherein the first drive motor comprises a first stator and a first rotor, and the first speed reducer is connected to the first rotor; a second drive motor and a second speed reducer that are disposed inside the housing, wherein the second drive motor comprises a second stator and a second rotor, and the second speed reducer is connected to the second rotor; a first oil pump and a second oil pump, wherein an oil inlet of the first oil pump is connected to the oil pan, and an oil inlet of the second oil pump is connected to the oil pan; a first oil path disposed inside the housing, wherein the first oil path is connected to an oil outlet of the first oil pump, and the first oil path is configured to supply oil to the first stator and the second stator; a second oil path disposed inside the housing, wherein the second oil path is connected to an oil outlet of the second oil pump, and the second oil path is configured to supply oil to the first rotor and the second rotor; and a third oil path disposed inside the housing, wherein the third oil path is connected to at least one of the first oil path and the second oil path, and the third oil path is configured to supply oil to the first speed reducer and the second speed reducer; wherein the power assembly further comprises a heat exchanger, wherein the first oil pump is connected to the first oil path through the heat exchanger, and the second oil pump is connected to the second oil path through the heat exchanger; characterized in that a first heat exchange branch and a second heat exchange branch are disposed in the heat exchanger, the first heat exchange branch is connected between the first oil pump and the first oil path, the second heat exchange branch is connected between the second oil pump and the second oil path, and the first heat exchange branch and the second heat exchange branch are independent of each other.