With time-resolved Fourier transform infrared emission spectroscopy and DFT B3LYP quantum calculation, the reaction dynamics of CH2((X) over tilde B-3(1)) and CH2((a) over tilde (1)A(1)) with NO have been investigated. It is found that both (CH2)-C-3+NO and (CH2)-C-1+NO reactions follow the same reaction pathways and produce same products arising from the same elementary channels. The primary products of vibrationally excited CO(v), HCO(v(1)), HOCN(v(2)), OH(v), and NH2(v(3)) were detected for the first time and four reaction channels have thus been identified. Theoretically, a doublet potential energy surface is characterized. On the potential energy surfaces, both the (CH2)-C-3+NO and (CH2)-C-1+NO systems reach a crucial intermediate OCHNH via a CNO ring-closure and ring-opening process. From this intermediate, the four reaction pathways proceed: C-N bond rupture in OCHNH simply leads to NH+HCO; OCHNH rearranges either to H2NCO producing CO+NH2, or to HOCHN generating HOCN+H and HCN+OH.