Abstract: A neuron network signal detection device is disclosed herein, comprising at least two coupled neurons, each neuron is connected to a sensor that transmits DC signal and the output terminal of coupled neuron is connected to a synchronization judgment unit. When adopting the above scheme, the physical or biological signals are converted to DC signals, which act on the mutually coupled neuron or neuron-like circuit. When the coupling strength reaches a certain value, the discharge behaviors of neuron or neuron-like circuit network will also achieve synchronization, and the synchronization judgment unit can detect the output voltage or current response of this kind of circuit.