The invention discloses a shock-absorption crushing and screening device for large minerals, and belongs to the technical field of mineral crushing. The shock-absorption crushing and screening devicecomprises a shell. A crushing cavity is formed in the shell. A sieve plate, oblique base plates, crushing roller devices, a grinding bin and a vibrator are arranged in the crushing cavity. A feed portis formed in the center of the top of the shell. A squeezing device is fixedly arranged at the top end of the shell. The crushing roller devices are arranged at the center of the upper side of the crushing cavity and located under the feed port. The oblique base plates are arranged at the bottom of the crushing cavity and fixedly connected with the shell. The shock-absorption crushing and screening device for large minerals is reasonable in structural design and convenient to use; large minerals are primarily crushed through the squeezing device and then further crushed through the crushing roller devices and a grinding roller, and the mineral crushing efficiency is greatly improved through crushing of the three types of crushing devices; and in addition, the sieve plate and the vibratorare arranged so that crushed minerals can be automatically sieved, and time and labor are saved.