To obtain edge-enhancement images of particle sources, such as high-energy X-rays, α-rays, γ-rays, and neutrons, we propose a spiral zone plate coded imaging (ZPCI) technique, which takes the spiral zone plate as the coded aperture. The spiral zone plate has the properties of both radial Hilbert transformation and Fresnel zone plate focusing, which is equivalent to a further radial Hilbert transformation of the decoded image obtained by Fresnel ZPCI technique. The feasibility of this proposed technique is verified via both numerical simulations and demonstrative experiments to generate edge-enhancement images. This technique can be widely used in many fields such as astronomy, nuclear medicine, and laser inertial confinement fusion.