The present invention discloses a packaging adhesive containing activated clay and a method for preparing the same. The adhesive comprises the components in parts by weight of 20-30 parts of chloroprene rubber (CR2322), 50-60 parts of cyclohexane, 40-50 parts of methylbenzene, 100-110 parts of ethyl acetate, 100-120 parts of 120# solvent oil, 20-30 parts of phenolic resin 2402, 5-10 parts of C9 petroleum resin, 6-8 parts of sodium carboxymethyl cellulose, 2-3 parts of aniline methyl triethoxysilane, 0.2-0.3 parts of tri-isopropanolamine, 1-2 parts of PAPI, 3-5 parts of chlorinated paraffinss, 0.2-0.3 parts of Tween-40, 5-10 parts of polyacrylate rubber (ACM-91), 4-8 parts of butadiene styrene rubber (SBR1502), 1-2 parts of activated zinc oxide, 2-3 parts of active magnesium oxide, 0.5-1 parts of sulphur, 3-5 parts of activated clay, etc. The adhesive provided by the present invention has the advantages of good high- and low-temperature resistance, abrasion resistance, high adhesive strength, good storage stability, environmental protection, favorable effect and convenient use.