The invention relates to an open vibration valve with the electric proportional control function and the pressure compensation function and used for a road roller. The open vibration valve is characterized in that a valve block is provided with a pressure compensation valve (1), a three-position four-way electric proportional valve (2), a shuttle valve (3), a two-position two-way reversing valve (4), a variable throttling valve (5), a throttling orifice (6) and a one-way valve (7), an opening P, an opening T, an opening TT, an opening A and an opening B are formed in the valve block, the opening P serves as an oil inlet of the valve block, and is connected with an outlet of a gear pump, the opening T serves as an oil return opening of the valve block, the opening TT serves as an oil return opening of the pressure compensation valve (1), the opening A is connected with an oil inlet of a vibrating motor, and the opening B is connected with an oil outlet of the vibrating motor. According to the open vibration valve with the electric proportional control function and the pressure compensation function and used for the road roller, the reversing unloading function of a common vibration valve can be achieved, stepless speed adjustment can be achieved, an open system can have speed adjusting performance similar to speed adjusting performance of a closed system, and speed frequency management of the open system can be achieved.