1. According to the geological conditions of polyhalite deposit formation, the deposit has good sealed wall rocks and basic geological conditions of leaching mining.

2. Insitu leaching mining of deeply buried polyhalite can alleviate severe shortages of potash resources in China.

3. The technological key to leaching mining of underground polyhalite is the extraction of effective constitutes from polyhalite.

4. Shallow polyhalite potash deposit has the instruction meaning for its resource and the prospecting for solid-state solubility potash salt.

5. The shallow polyhalite potash deposit in Sichuan are distributed in the north plunge top of Huayingshan anticline where is anhydrock of earlier Mesozoic Triassic period.

6. Leaching mining is probably an effective way for the exploitation of deeply buried polyhalite.

7. By analysing its geological characteristics, it is concluded that the polyhalite has indispensible geological conditions suitable for solution mining.