The invention discloses a tea screening machine which comprises a machine body, a clutch controller, a power device, rollers, a primary power rod, an auxiliary power rod, turning devices, a feeding port, a discharging port and air blowers, wherein the power device and the rollers are arranged on the two sides of the machine body respectively, the turning devices are arranged in the rollers and connected with the rollers through the primary power rod and the auxiliary power rod, the power device drives the primary power rod and the auxiliary power rod to rotate, and the clutch controller helps the power device to switch rotary modes to enable the rollers to rotate independently or rotate synchronous with the turning devices in an opposite direction. Multiple layers of rollers are arranged, every two adjacent rollers are connected through a connection part, holes different in sizes are formed in the walls of the rollers, the largest hole is positioned in the wall of the inner layer of the roller, and the sizes of the holes on the walls of the rollers from inside to outside gradually diminish. The feeding port is positioned in the side far away from the power device, and tea is poured into the tea screening machine through the feeding port, guided into the rollers and discharged out of the corresponding discharging port after rounds of screening.