On the basis of regarding traditional aided measuring probe as target ,adopted phase and fringe technique to calibrate a camera system or to measure a 3-D object, A new target-phase target, is proposed. Comparing with traditional method, the new calibration result of camera system is more reliable because of more accurate to extract the grids based on fringe analysis and phase technique. Camera is calibrated by calibration target which is built by 2-dimensional sinusoidal fringe having been projected on the computer screen.A new and portable phase target is designed originally,optical coordinate measurement is carried through the phase target. Moreover,coordinate system transformation formula and the moving distance of phase target is calculated. Exact measuring result is obtained in our experiments, which proves that the method is effective.