Based on the diffraction theory model for hot-image formation,the evolution of hot-images induced by multi-scatterers located in the same plane perpendicular to the propagation axis is numerically simulated.The simulation results show that hot-images induced by coplanar multi-scatterers are also coplanar no matter whether they exist simultaneously or severally.However,if they exist simultaneously the peak intensity of the primary hot-images is weaker than if they exist severally.The unequal competition for energy between the scattered beams from the scatterers leads to the fact that part of the corresponding hot-images are relatively enhanced and the others are restrained.The results show that the hot-images of certain scatterers become stronger when any of these parameters,i.e.amplitude modulation coefficient,phase modulation coefficient and size of the surrounding scatterer,decrease. Based on the diffraction theory model for hot-image formation, the evolution of hot-images induced by multi-scatterers located in the same plane perpendicular to the propagation axis is numerically simulated. The simulation results show that hot-images induced by coplanar multi- scatterers are also coplanar no matter whether they exist simultaneously or severally.However, if they exist simultaneously the peak intensity of the primary hot-images is weaker than if they exist severally. unembotational for energy between the scattered beams from the scatterers leads to the fact that part of the corresponding hot-images are relatively enhanced and the others are restrained.The results show that the hot-images of certain scatterers become stronger when any of these parameters, ieamplitude modulation coefficient, phase modulation coefficient and size of the surrounding scatterer, decrease.