Abstract: In order to find out the complex structure and deep extension of polymetallic ore body， high precision two-dimensional seismic method is selected for exploration test. Firstly，the appropriate ex⁃ citation parameters were selected in the experiment，and then the high-quality data were collected by us⁃ ing the high coverage times and double-line reception. Finally，the fine processing was performed to reveal the underground structure. The two-dimensional seismic method correctly delineates the distribution range of volcanic institutions，reveals the tendency and depth of cryptoexplosive breccia pipe，identifies the over⁃ all structure，and explores the deep extension of ore bodies. The application effect is good.

Key words: two-dimensional seismic exploration, polymetallic deposit, ore body structure