Abstract: According to the present condition of advance shoring at the comprehensive top coal caving mining Face, Introduced the structure,the technical parameter,equipment qualified,the adaptation condition and the main technical characteristic of a kind of new sides hydrolic shield applying in the comprehensive top coal caving mining Face, Studied the technical questions of conveying and installing, operating and employing, maintaining and managing of the Both sides hydrolic shield, Summarized a set of successful technology applying to shoring in ahead of time in the roadway of the comprehensive top coal caving mining Face.