The invention discloses a debugging device for the on-site carrier signal intensity of an electric power system. The debugging device comprises an upper computer and a plurality of handsets, wherein each handset comprises an OFDM encoding/decoding module. The upper computer comprises a link module, a receiving signal intensity measuring module, a link management module and a touch control panel, wherein the link module is used for downloading a downlink data set DLF from the OFDM encoding/decoding modules or uploading an uplink data set ULF to the OFDM encoding/decoding modules; the receiving signal intensity measuring module is used for measuring a receiving signal intensity value RS1 of the downlink data set DLF; the link management module is used for generating modulation encoding data according to the downlink data set DLF and the receiving signal intensity value RS1; and the touch control panel is used for manually sensing a waveform signal intensity value of carrier signal obtained for adjustment in a touch control mode for a user. The debugging device disclosed by the invention can be carried by an electric power management department or a test department and has the expansibility with multiple interfaces, multiple electric power information handsets can be pulled out simultaneously and be used by the maintenance personnel on site, carrier signal data is analyzed quantitatively and qualitatively, and debugging is performed conveniently.