Submarine mining collector is needed to work at 5000 ~ 6000 m deep from sea level according to a preset route.Due to effects of such factors as submarine geological environment,sea current,transporting pipes and cable etc,the control of traveling path is the most important.When the conventional direction control method is used and the traveling direction is changed,even if the direction can be rectified,the error in lateral movement would be produced also.A pure direction control was changed into traveling path control based on artificial intelligence.Three-ring in series control method,i.e.direction-speed-traveling path control,was used to solve a problem on lateral moving error basically.