The invention discloses a self-generating current detection sensor. When current detection is carried out, electric energy can be obtained, and the detected current can be detected. The self-generating current detection sensor comprises a current mutual inductance module used for converting a detected current into an induction current by utilizing a mutual inductance principle, a generalized resonance boosting module which is used for converting the induced current into electric energy by utilizing a generalized resonance boosting principle, and an inverse generalized resonance detection module which is used for acquiring a first sampling voltage signal between the first end and the second end of a current sampling module, and a second sampling voltage signal between the first input end and the second input end of the generalized resonance boosting module, wherein the inverse generalized resonance detection module calculates an electric signal associated with the current signal according to the first sampling voltage signal and the second sampling voltage signal.