The Yaogangxian composite pluton lies in the southeast of Hunan Province, belonging to the north of Nanling granitoid zone. Based on the range of zircon SHRIMP ages and mineral characteristics of these rocks, the authors inferred that they were products of pulsation events in the same magma chamber. In combination with previous research results, it is well known that granitoid intrusion and related tungsten-tin mineralization was an explosive regional event, and predominately took place during 150 to 160 Ma in Nanling area. Diagenesis of the Yaogangxian compsite pluton is closely related with mineralization. They are highly coincidence both in time and in space, and so to say, a continuous geological event. They are important parts of the explosive regional event in Nanling area.