The invention discloses a safety deposit box used for parking lot and capable of preventing electricity stealing of charging column. The safety deposit box includes a charging gun storing box, a decoding device, and a lock body structure. The charging gun storing box includes a storing box body and a security door rotationally arranged on the storing box body. The security door and the storing boxbody form a charging gun accepting cavity. The decoding device includes a fixing frame, a rotation shaft, a signal sensor, and a password dialing plate. The password dialing plate is provided with signal through holes. The lock body structure includes a driving part, a gear, a guiding rod, a guiding sleeve, and a spring bolt. The storing box body and the security door are separately provided witha first locking hole and a second locking hole which are mutually matched. The spring bolt is arranged on the first locking hole and the second locking hole in a penetrating mode, or is separated from the first locking hole and the second locking hole. According to the safety deposit box used for parking lot and capable of preventing electricity stealing of charging column, the charging gun storing box is arranged for storing a charging gun, and then through the decoding device and the lock body structure, the charging gun storing box is locked, so that electricity stealing of the charging column is prevented, and the safety of the charging column is improved.