To provide an earth and sand transport system which is constructed of a small number of equipment and copes with a long-range transport.

The earth and sand transport system is formed of a transport pipe 31 for transporting earth and sand in one direction, an air feeding device 11 arranged at some midpoint of the transport pipe 31, and an air sucking device 12 arranged at some midpoint of the transport pipe 31, separated from the air feeding device 11 and on one side of the air feeding device 11 closer to a transport destination. According to the system, while air is injected from the air feeding device 11 into the transport pipe 31, the earth and sand 50 are sucked together with the air by the air sucking device 12 and transported to the destination.