A power glitch signal detection circuit, comprising: a latch, a signal output module and a fifth MOS transistor; wherein a first input of the latch is connected to a power supply voltage, a first output of the latch is connected to a ground voltage, a second input of the latch is connected to a third output of the latch, a third input of the latch is connected to a second output of the latch, and the second output or the third output is connected to the signal output module; wherein when there is no power glitch signal on the power supply voltage and no power glitch signal on the ground voltage, the latch is configured to maintain a voltage value of the second input at a first voltage and maintain a voltage value of the third input at a second voltage, wherein the first voltage is greater or less than the second voltage; wherein the signal output module is configured to generate and output a target signal according to change of a voltage value of the third input, and the target signal is configured to indicate whether there is a power glitch signal on the power supply voltage or the ground voltage; wherein a gate terminal of the fifth MOS transistor is connected to the power supply voltage, a source terminal of the fifth MOS transistor is connected to the second input; and a drain terminal of the fifth MOS transistor is connected to the third input; wherein when there is no negative power glitch signal on the power supply voltage and no positive power glitch signal on the ground voltage, then the voltage value of the third input does not change, and the signal output module is configured to generate and output a third signal as the target signal, and the third signal is configured to indicate that there is no power glitch signal on the power supply voltage or the ground voltage; when there is a negative power glitch signal on the power supply voltage and/or a positive power glitch signal on the ground voltage, then the voltage value of the third input changes, and the signal output module is configured to generate and output a fourth signal as the target signal according to the change of the voltage value of the third input, and the fourth signal is configured to indicate that there is a power glitch signal on the power supply voltage or the ground voltage. a latch, a signal output module and a fifth MOS transistor; wherein a first input of the latch is connected to a power supply voltage, a first output of the latch is connected to a ground voltage, a second input of the latch is connected to a third output of the latch, a third input of the latch is connected to a second output of the latch, and the second output or the third output is connected to the signal output module; wherein when there is no power glitch signal on the power supply voltage and no power glitch signal on the ground voltage, the latch is configured to maintain a voltage value of the second input at a first voltage and maintain a voltage value of the third input at a second voltage, wherein the first voltage is greater or less than the second voltage; wherein the signal output module is configured to generate and output a target signal according to change of a voltage value of the third input, and the target signal is configured to indicate whether there is a power glitch signal on the power supply voltage or the ground voltage; wherein a gate terminal of the fifth MOS transistor is connected to the power supply voltage, a source terminal of the fifth MOS transistor is connected to the second input; and a drain terminal of the fifth MOS transistor is connected to the third input; wherein when there is no negative power glitch signal on the power supply voltage and no positive power glitch signal on the ground voltage, then the voltage value of the third input does not change, and the signal output module is configured to generate and output a third signal as the target signal, and the third signal is configured to indicate that there is no power glitch signal on the power supply voltage or the ground voltage; when there is a negative power glitch signal on the power supply voltage and/or a positive power glitch signal on the ground voltage, then the voltage value of the third input changes, and the signal output module is configured to generate and output a fourth signal as the target signal according to the change of the voltage value of the third input, and the fourth signal is configured to indicate that there is a power glitch signal on the power supply voltage or the ground voltage.