The invention relates to a comprehensive heat management device suitable for a hypersonic flight vehicle. The comprehensive heat management device suitable for the hypersonic flight vehicle comprises a temperature control valve (1), an evaporator (2), a fan (3), a cabin (4), a compressor (5), a condenser (6), a throttling valve (7), a shutoff valve (8), a second shutoff valve (9), an air-hydrocarbon heat exchanger (10), a flow regulation valve (11), a filter (12), a third shutoff valve (13), a fourth shutoff valve (14), a second fan (15), electronic equipment (16), a pump (17) and the like. Hydrocarbon fuel stored in a hydrocarbon fuel tank (21) serves as a link of a whole system, so that all sub-systems are connected. The hydrocarbon fuel serves as the link of the whole system, all the sub-systems are connected, and thus heat management of the hypersonic flight vehicle is achieved. Compared with the prior art, the comprehensive heat management device has the advantages and positive effects of being improved in performance, reduced in cost and the like.