The Sulu eclogites are located in the collision zone between the north china plate and the Yangtze plate. The p-t conditions of their formation is not only ultrahigh-pressure(UHP) ,but also high temperature (HT). The PTt paths of the eclogites indicate that they are the products of the continent-continent collisional subduc-tion zone. Their regional country rocks, i. e. granitic gneiss, are syncollisional granites of the Neoproterozoic, while the other direct country rocks (joining each other) of the eclogites all occur as enclosures in the granites. The eclogite bodies were intruded by the Neoproterozoic gneissic granite veins, indicating that the solid eclogite enclosures once existed in liquid granitic magma. Coesite and omphacite inclusions have been identified as minute inclusions in zircons from the regional country rocks, namely Neoproterozoic granites, indicating that the constituents of the Neoproterozoic granites also experienced UHP metamorphism, and that the isotopic ages of the zircon U-Pb system of the eclogites and the country rocks are basically equal to each other. However, the Neoproterozoic granites recorded less events (stages) of metamorphism and deformation than the eclogites. The following inferences can be obtained in light of the above: UHP eclogites and the Neoproterozoic granomagma were formed at the same time at the bottom of the collision zone (the front part of the subducted continental crust). The eclogites were carried to uplift by the Neoproterozoic granomagma at the first stage of the exhuma-tion and at the second stage the eclogites were uplifted and degraded along with the Neoproterozoic granites by thrusting and regional uplifting.