For detecting typical installation of cutting defects in cable terminations, two kinds of common installing cutting defects in cable terminations are previously designed and their PD (Partial Discharge) characteristics are also investigated. In order to expose PD characteristics in real operation conditions, an accelerating aging platform for cable terminations is set up. Moreover, by using a Rogowski coil PD sensor, defects’ PD characteristics including single discharge pulse, frequency spectrum and PRPD (Phase Resolved Partial Discharge) patterns are recorded and analyzed. In addition, PD characteristics of the two kinds of defects are compared. The experimental results show that the two kinds of defects are obviously different in time and frequency domain. Also, the significant differences in discharge strength are observed for the two kinds of defects after a short time (240 hours) aging. These characteristics can be used for recognizing defects and improving installation technique.