In forest and marsh area of Greater Higgan Mountains, the vegetation is luxuriant; the humus on soil surface is developed. 1:50 000 hydrographic net sediment with soil survey method with traditional regular net, the working period may be long and intensity of labor is heavy.The authors used the method of soil survey to go on anomalies check with irregular, achieved the results that quickly evaluate anomaly and trace the source of anomaly and shorten the cycle of looking for mineral deposits.