A　noise　detection　system　(INDS)　composed　of　an　acoustic　triboelectric　nano-generator　(TENG)　and　an　electrical　bilayer　synaptic　transistor　(EDLT)　is　proposed.　As　a　self-powered　sound　sensor,　TENG　converts　the　sound　signal　directly　into　a　voltage　signal　output.　EDLT　is　used　as　a　neuromorphic　device　to　simulate　synaptic　behavior　in　organisms　and　has　the　ability　to　store　and　process　signals　simultaneously.　In　this　letter,　a　kind　of　intelligent,　simple　structure　and　humanized　noise　detection　system　is　developed.