The invention relates to a direct-current cable test terminal device which comprises an insulating sleeve, sealing devices and voltage sharing covers arranged on two ends of the insulating sleeve, at least one voltage sharing ring arranged in the insulating sleeve, an insulating medium filled in the insulating sleeve. A direct-current cable axially penetrates through the insulating sleeve. The voltage sharing ring sleeve the direct-current cable, and an interval exists between the voltage sharing ring and the direct-current cable. In the installation process, the direct-current text cable is penetrated into the direct-current cable test terminal, and the sealing devices are installed on two ends of the insulating sleeve for sealing, the installation is convenient, and reuse is available. The voltage sharing ring sleeve the direct-current cable, the electric field distribution at a shielding part outside the direct-current cable is improved, the testing is more stable, and the testing effect is good; in addition, the interval exists between the voltage sharing ring and the direct-current cable, the voltage sharing ring is suitable for the direct-current cable with different cross sections, and different insulating media can be selected for filling or the dielectric performance of the filled insulating medium is regulated to be adapted to the direct-current cables of different voltage levels, and the applicability is higher.