Along with the speediness development of laser technology, jamming problem of laser to push-broom camera is widely noticed at all times. Push-broom camera has commonly high angular resolution, big optical caliber and long focus, and its price is costly. If research on the laser jamming experiment for push-broom camera is carried through by equity request, the technology difficulty will be very big, and the experiment fare will be high too. In allusion to jamming effects evaluation difficulty problem of laser to push-broom camera, a laser jamming equivalent scaling model of push-broom camera was put forward on basis of jamming mechanism and camera imaging principle, the model was validated by experiment. The experiment shows if F number, pupil laser power and CCD integral time of push-broom cameras are same, jamming effects of laser to original camera and scaling camera are basic same, namely laser jamming area on the two cameras′s imaging is basic same. This result can be used for evaluating laser jamming effects to Push-broom camera and researching camera laser protection method.