The invention discloses an 
engineering quality potential defect insurance (IDI) project 
technical risk management method and 
system, and relates to the technical field of 
big data application. The method comprises the following steps of: 1, dividing an insured 
engineering project into five stages according to a construction process and a logic sequence; 2, constructing an evaluation 
index system and a hierarchical structure model; 3, constructing a 
technical risk management system hardware platform which comprises a 
technical risk information collection unit, a 
data management unit, a 
data analysis processing unit, a quality risk 
knowledge base management unit, an information pushing unit, an information operation and maintenance service unit and a networking 
system; and 4-12, collecting,storing and analyzing technical risk related information, determining a 
risk level, proposing rectification suggestions, forming a risk check and evaluation report, submitting the report to an information demander, and storing technical risk 
processing means and 
processing results adopted by all parties. According to the invention, the risk rate and property loss of an insured 
engineering projectcan be reduced, and the engineering quality is improved.