A novel method based on diffraction theory with adaptive optics to control far field irradiance profile in inertial confinement fusion device is proposed. Taking piezoelectricity film deformable mirror for example, the probability of this method used in profile control is studied. The results show that adaptive optics technique can be used to control the far-field intensity profile and uniformity easily by deformable mirror with high spatial resolution. In addition, more simulations show that this method is better than traditional method in the tolerance of wavefront distortion.