Provided is a device for feeding a methane fermentation material with a high solid content, comprising: a transfer spiral, a pressure-boosting spiral and a discharge spiral which are coaxially connected in a sequential order. A cutting blade is mounted on a spiral shaft between the pressure-boosting spiral and the discharge spiral. A front end of a spiral shaft of the transfer spiral extends out of a spiral tube to connect with a decelerator by means of a shaft coupling. A feed bin is disposed on a front spiral tube portion of the transfer spiral. A spiral tube portion of the transfer spiral behind the feed bin is provided with a water filtering hole thereon, and an outer tube is sleeved onto the outside of the spiral tube portion. A residual liquid discharge port is provided on the outer tube. A rear end of the discharge spiral is provided with a discharge port.
