Kaiyang phosphorite mine is one of the largest phosphorite mines in China, leaving a lot of geological disasters and security concerns or hidden dangers after mining over several decades. Aimed at the real situation, a high technological approach method was used in the study to deal with geological disaster accidents by underground mining and engineering and supervision and warning countermeasures were taken to improve mine security and safeguards, resulting in controlling and eliminating security concerns, reducing disaster losses and rising enterprise’s competitiveness in market.