The invention provides a three-degree-of-freedom platform and relates to the technical field of three-degree-of-freedom platforms. The three-degree-of-freedom platform comprises a static platform, a moving platform positioned above the static platform, a driving mechanism positioned between the static platform and the moving platform and used for adjusting posture of the moving platform and a control unit connected to the driving mechanism; the driving mechanism comprises three supporting rods and three driving units corresponding to the supporting rods respectively, the upper end of each supporting rod is hinged to the bottom wall of the moving platform while the lower end of the same is supported on the static platform through the corresponding driving unit, the driving units are used for driving the lower ends of the supporting rods to move relative to the surface of the static platform to adjust relative position of the supporting rod, and the lower end of each supporting rod is inmoving pair connection relative to the static platform.