The stability is an important problem in taking laser holography of a scene.To monitor the stability of the holographic plate,pressure sensors ware introduced in our experiment.With the designed system and the program deveoped,real time monitoring and adjusting of the holographic plate is realized.Good result is achieved.Holograms taking time is shortened from 1~2 days to present 0.5~1.5 hours and success rate in creased to 90%.