The invention discloses a
safety valve structure capable of avoiding
impact of a valve clack during opening and closing and a method thereof. An upper buffer of the
safety valve structure is fixed above a valve rod, a first
piston is arranged at the bottom, and an inner cavity located above the first
piston serves as a first oil cavity; a first oil conveying hole is formed in the side wall; and a lower buffer set comprises at least two lower buffers of the same structure, and all the lower buffers are located in a
valve seat and evenly distributed. Second pistons are arranged at the tops of the lower buffers, and an inner cavity below the second pistons serves as a second oil cavity; and a second oil conveying hole is formed at the lower portion of the outer side wall, the first oil cavity, the oil conveying
pipe and the second oil cavity jointly form a communicated buffering channel which is closed all the time, and the buffering channel is filled with buffering media. On the basis of ensuring that a
safety valve is opened and closed in a short enough time, the
impact of the valve clack to a guide sleeve in the opening stage and the
impact of the valve clack to the
valve seat in the closing stage are reduced, the service life of valve internals of the safety valve is prolonged, and impact damage in the opening and closing process of the safety valve is avoided.