The invention relates to a system and method for realizing intelligent identification and early warning for a relay protection abnormity in a smart grid. The system comprises an operating parameter verification abnormity diagnosis and early warning function module, an equipment operating abnormity identification and early warning function module and a communication abnormity identification and early warning function module, and is characterized in that the operating parameter verification abnormity diagnosis and early warning function module is used for analyzing and identifying an abnormal condition of a verification result of operating parameters; the equipment operating abnormity identification and early warning function module is used for calculating out summary information and detailed information of secondary equipment operations of the day in the whole grid and storing the information; and the communication abnormity identification and early warning function module is used for calculating out summary information and detailed information of the plant station and equipment communication state of the day in the whole grid and storing the information. By adopting the system for realizing intelligent identification and early warning for the relay protection abnormity in the smart grid, a problem that relay protection equipment cannot identify accurately and effectively and give an early warning timely after having an abnormity is solved, an auxiliary basis is provided for the professional staff to master operating conditions of substation equipment in real time and quickly handling power grid accidents, and thus the automatic management level of the professional staff for substation secondary equipment is greatly improved.