PURPOSE: A winter time cultivation method of baby leaf vegetables is provided to harvest baby leaf vegetables as in summer, and to be able to shorten the growth period.CONSTITUTION: A bed is installed at a height of 70cm from the ground within a double plastic greenhouse. A heat rod using electricity is installed in the bed, which raises the temperature within the double plastic greenhouse by changing the electricity to heat. The side window and the door of the greenhouse are closed to prevent the outflow of the temperature. The heated temperature is maintained until the sun-rising time so as not to cool.COPYRIGHT KIPO 2013이중비닐하우스에서 전기히터봉을 활용하여 여름철과 동일한 온도를 제공하여 겨울철에도 여름철과 또 같이 어린잎채소가 생육상태를 보이는 모습