Because the visual angle of camera is small, targets will be out of the visual field when the TV-guided weapon is disturbed. In the process of TV-guided, we hope that the line-of-sight will be steady and the terminal angular constraint can be big enough. For the two side demands, we need design special guidance law to carry them out. It has worked out optimal guidance law which based on the optimal control theory and the dive angle restriction of moving targets. Some simulation contrasts have been done in order to prove the guidance law which has been worked out has fairly good capabilities on restraining sight defluxion speed and restricting dive angle.