专家队伍质量是影响智库研究与决策咨询水平的关键因素。提取CTTI系统的448个专家字段构建了包含基本属性、学术研究、社会活动等三个一级标签，12个二级标签的智库专家群体画像模型。通过数据清洗得到CTTI系统中数据完整的2150位专家样本，利用集体传记法、文献计量分析、社会网络分析方法归纳出专家群体特征。研究发现，中国智库专家群体具有学历、职称层次高，以中年男性、人文社科博士为主，跨机构兼职现象普遍，合作研究少，决策场景嵌入度较低，舆论影响力低等群体特征。

The quality of expert is the key factor affecting the level of think tank's research and decision-making consultation. In this paper, 448 fields about experts of CTTI system are extracted to construct a think tank expert group portrait model, which includes 3 first-level labels, such as basic attributes, academic research, social activities, and 12 second-level labels. A sample of 2150 experts with complete data in the CTTI system was obtained through data cleaning, and the characteristics of the experts were summarized by using the methods of collective biography, bibliometric analysis and social network analysis. The research found that the experts of Chinese think tanks have high academic qualifications and professional titles, they are mainly middle-aged men and doctors in humanities and social sciences, they often work part-time across institutions and collaborate less on research. Besides, they are less embedded in the decision-making process, and they don't do well in terms of public opinion influence.