The invention relates to a resource utilization method of pyrolyzing bamboo wood fused salt, and belongs to the technical field of biomass resource utilization. The method is characterized by including putting the bamboo wood into a high temperature fused salt to performing pyrolysis under inert atmosphere, washing the obtained solid product to obtain bamboo charcoal, and condensing the generated gas product to obtain bamboo vinegar. The beneficial effects of the method are that the fused salt provides an oxygen-free reaction environment, can be used as an activating agent to perform activation of the bamboo charcoal, can adjust the component of the bamboo vinegar, and can remove the colour and irritating smoke flavour of the bamboo vinegar. Moreover, the fused salt and the bamboo charcoal can be separated easily, and can be used repeatedly, so that the cost is reduced, and the compositive resource utilization of the bamboo wood is realized.