A plug status detection circuit (400, 1100), comprising: a wake-up circuit, configured to immediately output or delay outputting a wake-up signal based on a resistance value of a connected resistor of the plug status detection circuit (400, 1100) when a plug is connected to a socket, wherein the wake-up signal is used to trigger a central processing unit, CPU to drive a sampling circuit; and the sampling circuit is configured to inject a startup voltage under the drive of the CPU, and after the startup voltage is injected, a level of a detection point of the sampling circuit is used to indicate a plug status, characterized in that the wake-up circuit comprises: a wake-up function enabling circuit, configured to communicate the detection point with the wake-up circuit when the plug is connected to the socket; a delay circuit, configured to implement delayed conduction of a switching transistor; a trigger level conversion circuit, configured to trigger a wake-up signal output circuit to output the wake-up signal when the resistance value of the connected resistor of the plug status detection circuit (400, 1100) is less than a first resistance value and the switching transistor in the delay circuit is switched off, and trigger the wake-up signal output circuit to output the wake-up signal when the resistance value of the connected resistor of the plug status detection circuit (400, 1100) is greater than a second resistance value and the switching transistor in the delay circuit is switched on; and the wake-up signal output circuit, configured to output the wake-up signal under the trigger of the trigger level conversion circuit. a wake-up circuit, configured to immediately output or delay outputting a wake-up signal based on a resistance value of a connected resistor of the plug status detection circuit (400, 1100) when a plug is connected to a socket, wherein the wake-up signal is used to trigger a central processing unit, CPU to drive a sampling circuit; and the sampling circuit is configured to inject a startup voltage under the drive of the CPU, and after the startup voltage is injected, a level of a detection point of the sampling circuit is used to indicate a plug status, characterized in that the wake-up circuit comprises: a wake-up function enabling circuit, configured to communicate the detection point with the wake-up circuit when the plug is connected to the socket; a delay circuit, configured to implement delayed conduction of a switching transistor; a trigger level conversion circuit, configured to trigger a wake-up signal output circuit to output the wake-up signal when the resistance value of the connected resistor of the plug status detection circuit (400, 1100) is less than a first resistance value and the switching transistor in the delay circuit is switched off, and trigger the wake-up signal output circuit to output the wake-up signal when the resistance value of the connected resistor of the plug status detection circuit (400, 1100) is greater than a second resistance value and the switching transistor in the delay circuit is switched on; and the wake-up signal output circuit, configured to output the wake-up signal under the trigger of the trigger level conversion circuit. a wake-up function enabling circuit, configured to communicate the detection point with the wake-up circuit when the plug is connected to the socket; a delay circuit, configured to implement delayed conduction of a switching transistor; a trigger level conversion circuit, configured to trigger a wake-up signal output circuit to output the wake-up signal when the resistance value of the connected resistor of the plug status detection circuit (400, 1100) is less than a first resistance value and the switching transistor in the delay circuit is switched off, and trigger the wake-up signal output circuit to output the wake-up signal when the resistance value of the connected resistor of the plug status detection circuit (400, 1100) is greater than a second resistance value and the switching transistor in the delay circuit is switched on; and the wake-up signal output circuit, configured to output the wake-up signal under the trigger of the trigger level conversion circuit.