The present invention relates to a connection device for connecting cables with inner wire and, more specifically, to a connection device for connecting cables with inner wire, which easily connects the cable with the inner wire of the affiliated equipment to the cable with the inner wire of the agricultural machine supplying power in order to enable the agricultural machine, supplying the power, to operate the cable with the inner wire installed in the affiliated equipment when the affiliated equipment like a seeding machine, a rice transplanter, a rice straw packager, a fertilizer distributer, an agricultural chemical sprayer, etc. is connected to the agricultural machine, providing power, like a tractor, a management apparatus, a cultivator, etc. In addition, the present invention can acquire the effect of continuously transmitting a pulling force or a restoring force transmitted via the inner wire of the cable with inner wire by connecting the cables with the inner wire provided in the agricultural machine, supplying the power, and the affiliated equipment respectively, to each other without extending the length of either side； can acquire the effect of making it possible to connect the agricultural machine to the affiliated equipment by extracting the cable with the inner wire of each of the agricultural machine, supplying the power, and the affiliated equipment only to the device for connecting the cable with the inner wire even when the affiliated equipment is exchanged with respect to the agricultural machine, supplying the power； and can acquire the effect of being capable of performing the operation of the affiliated equipment, which does not require a high pulling force or a high restoring force using a hydraulic or a pneumatic pressure, by using the cable with the inner wire, which is relatively low-priced as compared with a hydraulic or a pneumatic apparatus.본 발명은 속선이 와이어인 케이블을 서로 연결시키기 위한 연결장치에 관한 것으로서, 보다 상세하면 트랙터, 관리기 또는 경운기 등과 같은 동력을 제공하는 농기계에 파종기,
