The invention provides a quadratic-grating-type photon sieve and belongs to the technical field of diffractive optical element design. The photon sieve comprises a transparent substrate layer and a metal layer on the transparent substrate layer. A plurality of small holes are distributed on the metal layer. The distance from the center of each small hole to the center of the photonic sieve is rn which is described in the specification. The small holes are located in the bright ring of the quadratic grating. The bright ring is composed of circular grooves, and the center radius of each circulargroove is described in the specification. The photon sieve can image an object plane having multiple tangent planes on the same image plane distributed along the direction vertical to an optical axis, and has a three-dimensional imaging effect. The photon sieve is simple in structure and is easy to manufacture.