The signal-to-noise ratio (SNR) of raw data from seismic exploration in the metallic deposit is very low, and various sorts of interference waves are mixed in the record, which seriously influences the quality of image formation for mineral seismic data.Therefore, an effective method of de-noising is the key to improving data quality.Based on seismic-data processing of the Kalatongke copper-nickel deposit in northern Xinjiang, the authors adopted multi-method combinational de-noising of FOCUS5.4 software to suppress mono-frequency noise, acoustic interference, surface wave and mechanical oscillating interference.Based on module experiment and parameter test, the authors found noise removal methods which are adapted to the contact mineral zone.This de-noising processing improves greatly SNR of mineral seismic data.