The invention provides an evaluation test method for a diesel engine bearing shell of a pressurized water reactor. The method comprises a running-in step, a test step A, a test step B, a test step C,a test step D, a test step E, a test step F, a test step G, a test step H and a test step I. After above-described series of test steps, the evaluation test method selects a bearing shell with betterperformance quality as a stable and reliable new bearing shell to replace an old bearing shell by observing the wear degree of the bearing shell to be evaluated, thereby avoiding the quality problem of a connecting rod bearing shell of an emergency diesel engine, enhancing the reliability of the emergency diesel engine, and reducing the risk of the emergency diesel engine crankshaft burning and major equipment damage due to the failure of the connecting rod bearing shell.