The invention provides a four degrees of freedom operation platform capable of continuously rotating. The four degrees of freedom operation platform comprises an operation platform body, a base and three branch chains mounted between the operation platform body and the base; each of the first branch chain and the third branch chain comprises a first hinge a, a first connecting rod, a first hinge b, a first gear turntable, a first bearing, a first drive gear and a first rotating actuator; the second branch chain comprises a second hooke joint, a second sliding column, a second sliding sleeve, asecond gear turntable, a second bearing a, a second bearing b, a second linear actuator, a second gear and a second rotating actuator; the three orthographic projection points of the rotating centersof the first hinge a, the second hooke joint and a third hinge a on the operation platform body form three vertices of a triangle; and in movement, the orthographic projection points of the rotatingcenters of a third hinge b, the first hinge b and the second gear turntable on a coordinate system xoy surface always form three vertices of a triangle. The four degrees of freedom operation platformis high in rigidity, stable in structure, high in bearing capacity, small in accumulation errors, small in movement inertia, and large in rotating operating angle.