Solid projection bullet as well as projection device and delivery method thereof

The invention relates to a solid projection bullet as well as a projection device and a delivery method thereof. The solid projection bullet is characterized by comprising a shell case; functional mediums such as gravels or/and soil are filled inside the shell case; and the shell case is made of fiber fabric, or the shell case is made of a flexible or rigid material which is easy to break due to collision. The solid projection bullet provided by the invention uses the gravels or/and the soil as the functional mediums. The solid projection bullets containing the different functional mediums can be selected. The solid projection bullet can be delivered by using a projection device, so that not only can the high firing range or the long-distance extinguishment be realized, but also a lot of the other functions can be realized, such as the solid projection bullet using the sand or the soil as the functional mediums can used for the high-firing range or the long-distance extinguishment in the fields, such as a hig