Abstract: This paper deals with a series problems of how to apply the continuous path con-trol to a robot effectively.Through enhancing the function of control software of MO-VE MASTER robot,we realized successfully a new method quite feasible and simple in alg-orithm.It combines the off-line double parabolic fit with the on-line digital differentialanalyser(DDA)interpolation.Under the prerequisite of not exceeding the permissibleanalyser(DDA)interpolation.Under the prerequisite lf not exceeding the permissibleerror,the number of parabolas can be reduced to a minimum so that the memories ne-eded for interpolation is decreased.Practice verifies that the actual moving path can becontinuous,smooth and excellently close to the desired path.