Dalian is located in low mountainous areas distributed by many strong weathered rocks. The foundations of more than 80%buildings are related to strong weathered rocks. So it is very important for Dalian to investigate and analyze strong weathered rocks. The writer would like to discuss the geotechnical investigation and analysis of strong weathered rocks,so as to increase the research level. This paper will elaborate the identification and analysis of strong weathered rocks from the perspectives of quality and quantity.