Circuit for preventing serial port from being mixed with electricity and electronic equipment

The utility model provides a circuit for preventing serial port serial connection and electronic equipment. The circuit for preventing serial port serial connection comprises a power supply loop, a control loop, a controlled switch loop and a power utilization module, the input end of the power supply loop is used for being connected with a power source, the output end of the power supply loop is electrically connected with the power source end of the power utilization module, a first I-O port of the control loop is electrically connected with the control end of the power supply loop, and a second I-O port of the control loop is electrically connected with the control end of the controlled switch loop. A serial port of the control loop is electrically connected with a signal input end of the controlled switch loop, and a signal output end of the controlled switch loop is electrically connected with a signal end of the power utilization module; the controlled switch loop can disconnect the electrical connectio