To provide a multicolor imaging method in which an image having good image quality and stabilized transfer density can be obtained even when laser recording is performed using high energy laser light of multibeam two-dimensional arrangement under different temperature and humidity conditions.

An image receiving sheet having an image receiving layer, and four kinds of thermal transfer sheet of yellow, magenta, cyan and black having at least a photothermal conversion layer and an imaging layer on a support are used. The multicolor imaging method comprises a step for superposing the imaging layer of each thermal transfer sheet and the image receiving layer of the image receiving sheet oppositely and irradiating it with laser light of multibeam two-dimensional arrangement from the support side of the thermal transfer sheet to transfer the region of the imaging layer irradiated with laser light onto the image receiving layer of the image receiving sheet thus recording an image. The imaging layer of a black thermal transfer sheet is thicker than the imaging layer of yellow, magenta and cyan thermal transfer sheets and the thickness is in the range of 0.5-0.7 μm.