본 발명은 전력케이블의 내부반도전층이나 외부반도전층에 모두 사용할 수 있으며, 특히 박리성이 우수하여 외부반도전층으로 사용하기 좋은 반도전성 수지 조성물 및 이의 제조 방법에 관한 것이다.
Provided is a semiconductive resin composition which may be used for both an internal semiconductive layer and an internal semiconductive layer of a power cable, and in particular has excellent peelability to be used for the external semiconductive layer. In addition, a novel semiconductive resin composition having improved thermal resistance and mechanical physical properties, and an improved deterioration property is provided. The semiconductive resin composition for a cable includes: 1 to 15 parts by weight of a multiwalled carbon nanotube as a conductive particle, and 1 to 10 parts by weight of an enhancer, based on 100 parts by weight of a composite resin including 10 to 250 parts by weight of an ethylene-(meth)acrylate-based resin and 1 to 100 parts by weight of an olefinic elastomer, based on 100 parts by weight of a polypropylene-based resin.