Disclosed are a heating unit for a vinyl greenhouse and a heating apparatus for a vinyl greenhouse comprising the same. The heating apparatus for a vinyl greenhouse comprising the heating unit of the present invention comprises: a heating water supply line for supplying heating water heated in a boiler to the interior of the vinyl greenhouse; a heating water recovery line for supplying the heating water cooled inside the vinyl greenhouse; and a solid block which is solidified to surround the heating water supply line and the heating water recovery line and heat-exchanges the heating water of the heating water supply line and the heating water of the heating water recovery line with each other. In the embodiments of the present invention, the heating water of the heating water supply line and the heating water recovery line heat-exchange with each other by the solid block provided to be solidified so as to surround the heating water supply line and the heating water recovery line, thereby be greatly reducing the heating cost.비닐하우스용 난방 유닛 및 이를 포함하는 비닐하우스용 난방 장치가 개시된다. 본 발명의 난방 유닛을 포함하는 비닐하우스용 난방 장치는, 보일러에서 가열된 난방수를 비닐 하우스의 내부로 공급하는 난방수 공급라인; 비닐 하우스의 내부에서 냉각된 난방수를 보일러로 공급하는 난방수 회수라인; 및 난방수 공급라인과 난방수 회수라인을 둘러싸도록 응고되어 난방수 공급라인의 난방수와 난방수 회수라인의 난방수를 서로 열교환시키는 고체 블록을 포함하는 것을 특징으로 한다.