The utility model discloses a high-frequency current partial-discharge live detector, which comprises a detection host and detection accessories. The detection host comprises a housing and a detection circuit in the housing, wherein the housing is equipped with a display displaying partial-discharge waveforms, a loudspeaker playing partial-discharge sounds, and operational buttons. The detection accessories are connected with the detection host via an interface module arranged on the detection host. The high-frequency current partial-discharge live detector has the advantages that 1) functions are complete, wherein the partial-discharge waveforms can be displayed, the partial-discharge sounds can be heard via the built-in loudspeaker, and sound and waveform information can be recorded in the detector or downloaded to a computer at anytime; 2) application scope is wide, wherein the detector can be used for quality control of a high-voltage equipment manufacturer as well as safety control for live work; and 3) operation and use are flexible, wherein the detector can form a system together with a low-noise HV source, an HF capacitive coupler and other accessories to test partial-discharge state of equipment.