In this paper, gabbro, granite, granulite and plagioclase amphibolite samples were studied by high-temperature and high-pressure deformation-melting experiment. Through particular study on the deformimg and melting characteristics and the stress-strain analysis on experimental samples, the conjugate fan deformation-melting structure model was thought to represent deformation-melting characteristics in natural conditions. On the basis of dynamic and delaminating melting, we got several cognitions: (1) In brittle-ductile transition, dynamic melting and the conjugate fan structure can occur in the lithosphere in a dynamic condition. The dynamic melting is controlled by the shearing and pressing melting mechanism. (2) The phenomenon of dynamic melting can extend the scope of melting in the lithosphere, which makes the melting occur in a more broad range of temperature, pressure and composition, but not only be defined in the upper mantle or the boundary between crust and mantle. The origin of heat cannot yet be controlled by the ground temperature only, but has two origins of ground temperature and dynamic heating. (3) On the establishing of the delaminating melting model, the genesis of island arc calc-alkaline andesite, I-type adakite and syntectonic granite were analyzed again. The delaminating melting-magma mixing genesis of island arc calc-alkaline andesite and the dynamic melting genesis of I-type adakite and syntectonic granite were advanced. The possibility of delaminating melting in a rift environment and the typology of delaminating melting were discussed at the same time.