Abstract: To explore the strength, deformation and energy dissipation characteristics of Huashan granite, uniaxial and triaxial compression tests were carried out using MTS 815 test system.The results show that the granite has obvious brittle characteristics.The "concave-upward" phenomenon of stress-strain curves from triaxial compression tests is less obvious than those from uniaxial compression tests.The elastic modulus and the strain corresponding to the peak stress increase with the increase of confining pressure, but the rate of increase gradually slows down.There is a linear relationship between the dilatancy threshold of the granite and the confining pressure.Under uniaxial compression, the elastic strain energy of the rock sample is mostly transformed into dissipated energy once the peak stress is reached, demonstrating evident splitting failure.As for the triaxial compression of the rock samples, the ratio of dissipated energy to absorbed energy increases with the increase of confining pressure, accompanied by a general shear failure.The absorbed energy, the elastic strain energy and the dissipated energy under triaxial compression are much higher than those under uniaxial compression, and they all increase as the confining pressure increases.Additionally, there is a linear relationship between the confining pressure and the absorbed energy, the dissipated energy and the energy storage limit.