Electric vehicle charging protection device

The utility model provides a charging protection device for an electric vehicle. The device comprises a protection box, a charging state monitoring module, a first socket and a second socket. The charging state monitoring module comprises a box body, a current detection circuit, a timer, a first relay and a first single-chip microcomputer. A plug and a third socket are arranged on the box body; the electric vehicle charging protection device further comprises an electric leakage detection module. The electric leakage detection module comprises a switch, an electric leakage detection circuit, asecond single-chip microcomputer and a second relay. When the current detection circuit detects that the electric vehicle charger is in a floating charging state; timer start timing, timer time reaching preset time, the first single-chip microcomputer controls the first relay to be disconnected. When the electric leakage detection circuit detects that the charging circuit is in an electric leakage state, the second singl