The utility model provides an utilize ultrasonic wave to survey anisotropy of rock mass's simple and easy experimental apparatus, its characterized in that, the chassis is the rock core and whole device provides the steady experimental system, and the round wall section of thick bamboo on it is effectively fixed to base recess broad in the middle, and the axial spring of one has been fixed to the fixed probe down of intermediary cylindrical small notch in the small notch, four cylindrical through -hole circumference equidistance distribute in the middle of the circle wall section of thick bamboo to designed the lead wire groove of popping one's head in in every cylinder hole lower part, the peripheral design at cylinder hole position has the stationary blade, and the screw is passed through at the stationary blade both ends and a circle wall section of thick bamboo is fixed, and the stationary blade internal surface is fixed with a spring along circle wall cylinder diameter to the direction, the lower surface center of increased pressure board exists cylindrical recess, fixed upper portion probe to at the lead wire through position design lead wire groove, pressurization mode accessible upper portion is put the weight and is pressurizeed. The anisotropic who finally realizes rock core under the different loading environment detects.