The invention discloses a two-way initiating explosive-free annular energy output detonator. The two-way initiating explosive-free annular energy output detonator comprises a metal pipe shell with an annular energy gathering groove and opened at two ends, two energy input signal channels in the pipe shell, two laser parts and two main charging parts; the two energy input signal channels can be explosion guide pipes, rubber plugs or explosion guide cables or charge input leg wires; and the whole structure is totally and symmetrically filled along the middle of the round pipe. The two-way initiating explosive-free annular energy output detonator can synchronously detonate from two ends, and enhances the detonation initiating reliability; and the two-way initiating explosive-free annular energy output detonator adopts an initiating explosive-free flight piece technology, is safe and reliable, is combined with an annular energy gathering jet principle, and is high in explosion initiating capacity.