The theory of the hybrid mechanism are applied in the research of the cam-linkage.The conception and signification of hybrid cam-linkage mechanism are introduced.Based on the kinematics analysis

the condition of the flexible workspace boundary of hybrid cam-linkage mechanism is analyzed by using the graphic method.It indicates that hybrid cam-linkage should satisfy the conditions of the flexible workspace boundary and kinetic dimension restriction for regenerating trajectory.The example of realizing super-ellipse multiple trajectories is designed.Simulation results show that hybrid cam-linkage mechanism can generate multiple complicated trajectories with the same laws or the different laws in the specification flexible workspace.