The invention relates to a high voltage direct current circuit breaker parallel connection lightening arrester bleeder current monitoring device and a high voltage direct current circuit breaker parallel connection lightening arrester bleeder current monitoring method. The high voltage direct current circuit breaker parallel connection lightening arrester bleeder current monitoring device is characterized in that at least a wireless current sensing oscillograph is provided, and is wirelessly connected with a data acquisition unit, and therefore acquired instantaneous current data waveforms of measuring points are wirelessly transmitted to the data acquisition unit, which is connected with a calculation analysis platform in a wireless or wired way, and therefore the calculation analysis platform is used for the analysis and the processing of the above mentioned instantaneous current data waveforms, and is used to give hints, when abnormities are discovered. The passive type high voltage direct current circuit breaker parallel connection lightning arrester bleeder current monitoring device and the passive type high voltage direct current circuit breaker parallel connection lightning arrester bleeder current monitoring method are advantageous in that transient current waveform data flowing across an electric device at a specific moment is recorded accurately, and the data is analyzed and processed, and then maintenance staff can be aware of the operation state of the device accurately, and find out the abnormities of the electric device in advance, and therefore necessary measures are taken to prevent occurrence of accidents.