Abstract: In order to investigate the ethylene absorbent by regulatory environment ethylene and to inhibit the pear fruit softening, the author studied on the effect of ethylene absorbent on the fruit firmness, ethylene production, the pear cell wall metabolism during fruit cold storage under 0℃ conditions, using Fengshui pear as the test materials covered with PE18 μm fresh-keeping bag. The results indicated that: the pear fruit was softening after the high peak of the ethylene release. There was a significantly positive correlation between the fruit ethylene release and the ethylene concentration environmental in the bag, but there was a significant negative correlation between the fruit firmness and the soluble pectin content. The ethylene absorbent to the environment ethylene regulation inhibited the fruit ethylene release and PME, PG activity, limited the pectin degradation speed, thus it was effectively to keep the fruit firmness and delay the fruit softening process.