Due to the scattering characteristics of scattering medium, incident coherence light diffuses through the scattering medium and forms a volume speckle filed that has no coherence formation and the traditional optical imaging system cannot be focused to detect the internal information of the object. According to the principle of wavefront shaping, the speckle can be modulated into a bright focal spot by shaping the phase of the beam through the feedback optimization algorithm. Based on this method, we experimentally load series of equal interval phase for each pixel of spatial light modulator (SLM) and collect multiple speckle images to realize focusing of any point of the beam by local maximum optimization algorithm. Meanwhile,a new method for focusing different uniform areas is proposed, which provides a new way to achieve imaging the object of the focus plane.