A greenhouse cultivation system employing heat generated by a variable-frequency drive or inverter. The system comprises a greenhouse (1). Several water channels (2) and ventilation pipes (3) are arranged in parallel and buried underground in the greenhouse. Each of the water channels is secured with a heat dissipation tube (4) therein and provided with a cooling liquid inlet (21) and cooling liquid outlet (22), and the heat dissipation tube has one end fastened to the cooling liquid inlet of said water channel and the other end fastened to the cooling liquid outlet of said water channel. The cooling liquid inlets of the water channels are connected to a heat generation element (6) of a variable-frequency drive or an inverter via a cooling liquid pipe (5), and the cooling liquid outlets of the water channels are connected to an in-line pump (7) 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 system 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 système de culture en serre utilisant la chaleur dégagée par un entraînement ou un onduleur à fréquence variable. Le système comprend une serre (1). Plusieurs canaux deau (2) et des tuyaux de ventilation (3) sont agencés en parallèle et enterrés sous le sol dans la serre. À lintérieur de chaque canal deau est fixé un tube de dissipation de chaleur (4) et chaque canal est pourvu dune entrée de liquide de refroidissement (21) et dune sortie de liquide de refroidissement (22), et le tube de dissipation de chaleur a
