The invention relates to a textile printing and dyeing technique, in particular to a manufacturing technique of an infrared ray resistant multi-functional camouflage fabric. The technique flow is as follows: original cloth seaming, singeing, old rolling, 180 pre-treatment, shaping, mercerizing, ground dyeing, pattern printing, baking, aging, stentering of post treatment, examination and acceptance; wherein, the ground dyeing flow is as follows: padding liquor, two groups of infrared rays and drying; a formula adopted in the ground dyeing flow comprises 2g/l to 10g/l of dispersion dyes, 5g/l to 15g/l of vat dyes and 0.01g/l to 1.0g/l of infrared ray resistant regulators; the formula of pattern printing is as follows: 2kg to 15.7kg of dispersion material, 2. kg/l to 10.5kg/l of vat material and 0.01kg to 2.5kg of infrared ray resistant regulators; post treatment has the function compatibility of multiple functions which are water proofing, oil repellence, ventilation, crease resistance and static resistance. The technique has the advantages of having short production procedure, color phase with good uniformity, stable infrared reflectivity, low cost, multiple functions, mainly using environment friendly dyes and being suitable for infrared ray resistant camouflage fabric products with different fibers and different specifications.