Tobacco flue-curing energy is an important influence factor on the cost of flue-curing, energy-saving and emission-reduction. Bio-coal Briquette is a new alternative fuel. We discussed its processing technology, combustion mechanism and combustion character in this paper, analyzed its influence factor on coal quality, quantity of biomass, adhesives and briquetting pressure, and investigated the prospect of bio-coal briquette in tobacco flue-curing.