Yi Zang Shu Mu(, The List of Medicine Books), written by Yin Zhongchun, is China's earliest medical bibliographer. The years of birth and death of Yin Zhongchun was unknown. By text research, it is confirmed that Yin Zhongchun was born in the 20th Year of Jiajing in Ming Dynasty (1541) and died in the First Year of Tianqi(1621). The only currently existing block-printed edition of Yi Zang Shu Mu is the Fan Xingzhun Qi Fen Shi edition in the library of China Academy of Chinese Medical Sciences. The copies in Japan lack the words " Proofread by Yun Jian Chen Jiru Meigong" , but have an extra preface written by Chen Yidian. This fact indicates that the original of the Japanese copy might be different from the Chinese edition.