The invention discloses a dyeing and finishing method for military sweat shirts and pants. A fabric is dyed by 1.05% owf of a 100% Levafix CA blue, 2.4% owf of 100% Ciba reactive dark blue S-GL, 2.5% owf of 100% Ciba reactive yellow S-3R and 0.585% owf of 100% Ciba reactive red S-B. According to the method, the reactive dark blue S-GL containing a fluoro-s-triazine active group and an improved vinyl sulfone active group and the Levafix CA blue containing two fluoro-s-triazine active groups are utilized, a salt and alkali preadding dyeing process is broken through, and the method is suitable for the theory of fluoro-s-triazine-vinyl sulfone active group and vinyl sulfone double-active group dyeing. The dyeing and finishing method has the advantages of being high in automation degree, few in human disturbance factor, precise in bath ratio, simple, easy to control and beneficial for improvement of the dyeing reproducibility.