360-degree electrical connection system for cordless electrical instrument

The utility model discloses a 360-degree electrical connection system for a cordless electrical instrument, and the system comprises a cordless plug connector and a corresponding cordless socket connector. The cordless plug connector comprises at least one peripheral extending electric conductor which is electrically connected to a corresponding electric conductor of the cordless socket connector, thereby enabling at least one peripheral extending electric conductor of the cordless plug connector to be positioned and abut against the main body of the cordless socket connector. The main body is provided with at least one annular wall, and each annular wall comprises at least two roughly radially projected parts or extending parts which are used for enabling at least one peripheral extending electric conductor to be centered and/or aligned.