Based on 8120 fully mechanized experimental working face support initial support， cycle end resistance， Time weight average working resistance and its distribution in Wangzhuang Mine of Shanxi， fully mechanized working face mine pressure behavior was summarized. The study showed that the average cycle pressure step distance was 21.6 m， the average dynamic load coefficient was 1.67， the release of fully mechanized working face top coal led to top coal broken and mobile， lowered the initial support and weight average working resistance.