關於李之藻（1565-1630)的家世背景資料，以往幾乎可以說是付諸闕如。近年來隨著ー些新史料的發現，有了很大的改觀，使長期以來未獲突破的問題，如其生平事蹟、家世後嗣等得到了基本的解決，但仍存有不少問題。本文據上海圖書館藏《萬曆二十六年進士登科錄》、《會試錄》等科舉和地方史志中的新資料，對其家世、科舉等若干問題作一考察辨析。如李之藻曾祖李榮的官稱，祖父之名及官職，父親李師錫與其過繼問題，祖母李陳氏守寡育孤的事蹟，和李之藻的相互關係與影響，母親應氏與妻徐氏之事，李之藻的科舉名次，其宋代祖先李寶及其墳墓等，作了具體的論述，並提供了ー篇佚文，以修正與補充當前研究中的缺失及不足。

Until recently, scholars have known little about Li Zhizao 李之藻's family background and life experiences. Due to some newly-discovered historical materials, however, current studies have made steady progress about these topics; nevertheless, some problems remain unsolved. Based on new facts found in The Namelist of Graduates of the Palace Examination of 1598 萬曆二十六年進士登科錄，The Collection of the Official Examiners’ Reports 會試錄（both preserved in the Shanghai Library), and local annals, this article analyzes more details about Li Zhizao's family background and examination career: his great-grandfather Li Rong 李 榮's official title; his grandfather's name and official position; his father, Li Shixi 李 師錫，and his adoption by other family members; his grandmother Chen 陳氏，who raised her children alone as a widow; the grandmother's impact on Li Zhizao; his mother, Ying 應氏，and his wife, Xu 徐氏；Li's rank in the civil service examination; his Song ancestor Li Bao 李寶 and his tomb. It also presents a newly discovered essay by Li, further enriching previous research on these issues.