With classification of rock types, test of metal elements and other geologic characteristics, the regularity of the horizontal and vertical zonation of the ore bodies and rocks is analyzed.

With the main technique problems be discussed, the proper qualification and procedure for black start of huanren power plant are proposed.

The feasibility of which short-hole shrinkage method is used for mining of low-grade and submarginal ores in Huanren Mine is demonstrated in this paper.

The Huanren Pb-Zn ore deposit in Liaoning Province, abounding with rich lead, zinc, copper and iron, is recognized as skarn type.

Compared with the original design of the reservoir flood operation, it shows that the real-time operation method can increase the hydropower generation benefits without bringing any more flood risk.