It is a hot research direction at present to measure the three-dimensional (3D) profile of complex curved-surface rapidly and accurately. Compared with the existing measurement methods, the fringe projection profilometry (FPP) has extensive applications for its advantages, such as non-contact measurement, fast speed and dense reconstruction point cloud. It has been widely applied in reverse engineering. In this paper, a FPP system was built to measuring the complex curved-profiles. To improve the measurement accuracy, key technologies of fringe projection contour measurement such as phase error calibration and compensation, precise projector calibration, simplification of high-order calibration model and quick identification of valid points are thoroughly studied. Finally, the profile of an aero-engine blade is measured using the system. Experimental result shows that the maximum measurement deviation is not greater than 0.05mm.