A greenhouse cultivation device employing heat generated by a variable-frequency drive or inverter. The device comprises a greenhouse (1). Several rows of heat dissipation elements (2) and ventilation pipes (3) are buried underground in the greenhouse. The heat dissipation elements are formed by multiple sheet-like radiators (21) connected in series, and each of the radiators is provided with a cooling liquid inlet (211) and a cooling liquid outlet (212). The cooling liquid inlet of a first radiator is connected to a heat generation element of a variable-frequency drive or an inverter via a cooling liquid pipe (4). The cooling liquid outlet of a last radiator is connected to an in-line pump (5) via a cooling liquid pipe. The ventilation pipes have two ends protruding from the ground and located outside of the greenhouse, and have walls extending upward to form several air discharge pipes (32) protruding from the ground and located within the greenhouse. A roof of the greenhouse is provided with a skylight. A temperature sensor is provided within the greenhouse. The device fully utilizes waste heat generated by a heat generation element of a variable-frequency drive or an inverter, thus saving energy for winter cultivation in a greenhouse, and is environmental friendly and energy saving.Linvention concerne un dispositif de culture de serre utilisant de la chaleur produite par un entraînement ou un onduleur à fréquence variable. Le dispositif comprend une serre (1). Plusieurs rangées déléments de dissipation de chaleur (2) et de tuyaux de ventilation (3) sont enfouies sous terre dans la serre. Les éléments de dissipation de chaleur sont formés par de multiples radiateurs en forme de feuille (21) connectés en série, et chacun des radiateurs est pourvu dune entrée de liquide de refroidissement (211) et dune sortie de liquide de refroidissement (212). Lentrée de liquide de refroidissement dun premier radiateur est reliée à un élément produisant de la chaleur dun entraîne
