Abstract Bio-briquette is an alternative energy substitute for fuel produced from organic materials or agricultural waste (biomass) which is underutilized, especially durian shell waste. This study aims to see the effect of differences in ash content, heating value, and bio-briquette flame test. The making of this bio-briquette uses 1:2 starch from the bio-briquette weight, the bio-briquette particle size is 8 mesh. The bio-briquette is cylindrical. The result showed that the bio-briquette produced had met the fuel standards of households. Durian shell bio-briquette produces 7.7% ash content, the heat value produced is greater than 5000 cal/gr which is 5040 cal/gr with a 55-minute flame test. Based on the combustion test, the bio briquette.