The registration of multi-sensor images is a basic and key technique in image fusion processing,image fusion can be done effectively only after registration.Normal registration schemes are not suitable for small target because there are nearly no features can be used.Aiming to the characteristics of small target registration,a new method of completed the registration by two steps is presented,and the idea of FOV registration is brought forward.Firstly,using imaging principle,with focus,resolution and pixel dimension of CCD,the FOV corresponding relation between different CCD is established,and then it is used to complete FOV registration by cutting and zooming out the FOV of target. Secondly,based on analyzing the disadvantage of the common used Minimum Absolute Deviation（MAD）matching,the method using Maximum Close Distance （MCD）matching to register target position is proposed.The experimental result shows that the method can register small target well,and the error is not beyond two pixels.Because it＇s strong pertinence,it can be used in project.