In　order　to　solve　the　problem　of　energy　utilization　of　urban　plastic　garbage　and　livestock　manure,　this　paper　developed　a　method　and　technology　to　produce　high-calorific　value　biomass　char　fuel　through　low-temperature　pyrolysis　in　drying,　thermal　decomposition,　extrusion　and　other　processes,　using　urban　plastic　garbage　and　chicken　manure　as　raw　materials　which　are　difficult　to　recycle.　Established　the　verification　experiment　device　in　Chiba　prefecture,　with　a　15%　plastic　+　85%　chicken　manure　as　raw　material,　the　preparation　of　the　calorific　value　of　5500-6000　kcal/kg　of　high　calorific　value　of　biomass　char　fuel.　The　ignition　temperature,　burning-out　temperature,　comprehensive　combustion　characteristic　index　S　and　other　combustion　characteristics　of　fuel　were　analysed　by　thermogravimetric　experiments.　The　kinetic　analysis　of　fuel　was　carried　out　by　means　of　Coats-Redfern　method.　The　pre-exponential　factor　and　activation　energy　of　combustion　temperature　range　were　obtained.　The　results　show　that　the　volatilization　of　biomass　char　fuel　exceeds　60%,　the　ignition　temperature　and　burnout　temperature　are　low,　and　the　ignition　performance　is　good　and　the　combustion　speed　is　fast.　The　fuel　calorific　value　is　24985kJ/kg　(5976kcal/kg),　the　activation　energy　is　55.11kJ/mol,　and　the　comprehensive　combustion　characteristic　index　S　is　4.57　10-8　min-2K-3,　which　is　similar　to　bituminous　coal.　In　addition,　biomass　char　fuel　contains　almost　no　sulphur　and　does　not　require　desulfurization　equipment.　It　is　a　kind　of　biomass　fuel　that　can　achieve　clean　and　efficient　combustion　and　replace　coal.　©　Published　under　licence　by　IOP　Publishing　Ltd.