Propellant as well as preparation method and application thereof

The invention belongs to the technical field of composite propellants, and particularly relates to a propellant as well as a preparation method and application thereof. The propellant provided by the invention comprises the following components in parts by mass: 48-65 parts of an oxidizing agent, 3-8 parts of a high explosive, 5-10 parts of a metal fuel, 10-15 parts of an adhesive, 10-15 parts of ceramsite, 3-5 parts of a plasticizer, 2-5 parts of a curing agent and 3-5 parts of a functional auxiliary agent. The propellant provided by the invention has the characteristics of high burning rate, moderate gas production rate and high explosion temperature, and can react quickly in a short time to generate high-temperature and high-pressure gas, quickly act on a fractured target ore bed and optimize the number of reservoir fracturing cracks as a detonation fracturing gunpowder propellant of in-situ leaching hypotonic uranium ore, so that the aim of improving the seepage capacity of a near wellbore area is fulfill