127—epoxy resin adhesive and its components: E—44 epoxy resin, dibutyl—o—phthalate and anhydrous ethylenediamine were irradiated with γray in air, nitrogen or vacuum at ambient temperature respectively. The gaseous products such as hydrogen, methane and carbon dioxide were examined by means of GC. Remarkable effect of ambiences and dose on γradiated degradation of these specimen were found. The results indicated that the content of gaseous products increased with dose,but changed with ambiences. The forming of carbon dioxide was not only determined by the amount of oxygen in ambience, but also by whether the specimens struc,¬, ture contained oxygenous groups or not. It was shown that there were good linear increasing relationships between dose and the concentration of gaseou products hydrogen and methane for 127—epoxy resin adhesive, and methane for dibutyl—o—phthalate. All above indicated low radiation—resistance of 127—epoxy resin adhesive.