Full-stress type rubber spring foundation of seat

The invention discloses a full-stress type rubber spring foundation of a seat. The foundation is composed of a floor connection plate, a first external framework, a rubber vibration-absorption column, a pin shaft, a second external framework and a seat connection plate, wherein the seat connection plate is fixedly arranged at the lateral upper side of the second external framework and the second external framework is in a frame shape; the pin shaft is externally sleeved with the rubber vibration-absorption column and the upper and lower ends of the pin shaft are fixedly arranged on the second external framework; the ring-shaped first external framework is sleeved on the periphery of the rubber vibration-absorption column and the outer side of the first external framework is fixedly provided with the floor connection plate; the floor connection plate is connected with a vehicle floor and the seat connection plate is connected with the seat. According to the full-stress type rubber spring foundation of the seat, the rubber vibration-absorption column has the function of buffering under the condition that a driver suddenly tramples a brake or suddenly accelerates, so that a passenger can comfortably sit on the seat.