The present invention relates to a caterpillar breeding device, and more specifically, by combining a heating means between the outer cylinder and the inner cylinder of the caterpillar breeding device, to maintain the storage space of the inner cylinder to accommodate the appropriate number of larvae at the proper temperature necessary for the larval growth The present invention relates to a larvae rearing device that enables efficient breeding and management of larvae of a proper population accommodated in each rearing device, and reduces initial investment and maintenance costs of the rearing facility. The caterpillar breeding apparatus of the present invention has an outer cylinder 10 having a first accommodation space 13, an inner cylinder 20 having a second accommodation space 23 in which larvae are accommodated, and the outer cylinder 10 and an inner cylinder ( 20 is disposed between the heat generating means 30 for generating warmth in the second storage space 23, the temperature controller 50 for controlling the temperature of the heat generating means 30, and the outer cylinder 10 It is characterized by consisting of a lid 40 for opening and closing the opened upper surface of the. In addition, the present invention has at least one first vent hole 14 through which outside air flows into the first side plate 12 of the outer cylinder 10, and outside air flows into the second side plate 22 of the inner cylinder 20. At least one or more second vent holes are formed, and the heat generating means 30 is characterized by consisting of a planar heating element.본 고안은 애벌레 사육장치에 관한 것으로, 보다 상세하게는 애벌레 사육장치의 외통과 내통 사이에 발열수단을 결합하여, 적정 개체수의 애벌레가 수용되는 내통의 수납공간을 애벌레 생육에 필요한 적정 온도로 유지시킬 수 있도록 함으로써, 각 사육장치에 수용되는 적정 개체수의 애벌레들을 효율적으로 관리하면서 사육할 수 있도록 하고, 사육시설의 초기투자비용과 유지비용을 절감할 수 있도록 하는 애벌레 사육장치에 관한 것이다.이와 같은 본 고안의 애벌레 사육장치는 제1 수납공간(13)을 갖는 외통(10)과, 애벌레가 수용되는 제2 수납공간(23)을 갖는 내통(20)과, 상기 외통(10)과 내통(20) 사이에 설치되어 상기 제2 수납공간(23) 내부에 온기를 발생시키는 발열수단(30)과, 상기 발열수단(30)의 온도를 제어하는 온도조절기