The east 2* oredody of Lizhu iron mine,due to loose and broken ground, has been difficult to mine for a long time. Until recently, an experiment on block caving method has been made and is a success. The technology such as drivage, support, doudle-layer sill cut and microcomputer application etc. has been improved to a more or less degree. According to practice in this mining method,the authors have a systematic discussion on assessment of orebody cavabili-ty, mining technology, computer control of ore drawing, support technique, and ground monitoring and control etc.