The invention discloses a rotary filling machine, which comprises: a fixed workbench, which is provided with a plurality of constraint positions; a rotary workbench, which is equipped with a plurality of bottle clamping positions, during rotation of the rotary workbench, with the constraint positions and the corresponding clamping positions composing a plurality of stations, at least one of which is a gland station and at least one of which is a filling station; a workbench drive device, which is in transmission connection with the rotary workbench so as to drive the rotary workbench to do intermittent motion relative to the fixed workbench; a gland device, which comprises a gland component and a gland drive mechanism driving the action of the gland component, with the gland component being disposed over the gland station; and a filling device, which consists of a filling component and a filling drive mechanism driving the action of the filling component, with the filling component being disposed over the filling station. The rotary filling machine provided by the invention can perform filling on materials according to a fixed cycle to realize filling automation, thus improving the filling efficiency, reducing the cost and enhancing product quality.