The utility model discloses a single friction plate thrust bearing, which comprises a bearing cap and a bearing block which are mutually buckled and are in running fit, a friction plate is arranged between the bearing cap and the bearing block, the friction plate is annular and is made of supra polymer polyethylene, the bearing cap and the bearing block are made of modified polyformaldehyde (POM), and lubricating grease is filled between the bearing cap and the friction plate as well as the bearing block and the friction plate. The single friction plate thrust bearing has the advantages of reducing the friction pair between the friction plates, lowering the friction coefficient, and having small starting torque and small running torque in normal running, thereby staying working even if the friction force in the bearing is large, and preventing uncomfortable abnormal sound caused when the bearing has difficulty in rotation.