Abstract: Professor Zhu Kezhen was a founder of modern geography in China, as he played an epoch-making part in the development of geography of China. He presented his splendid geographical theory and experinces, a wealth of knowledge which he improved in his life to the people. The substances of modern geography and research objects were penetratively explained by Prof. Zhu. He suggested that the research work should be connected with practice and shoud serve the people and the nation's reconstruction, mean-while, basic theory should be studied intensively. According to Prof. Zhu, a comprehensive scientific expedition in geography of China and the training of qualified for personnel for it are extramely important. He pointed out emphatically that geographers should involve into the economic activities of national reconstruction and thus the geographical theory can be developed. He concerned especially with the modernization of geography and rising it up to a heigher level, and emphasized that geography must be armed and developed by using current knowledges of biology, physics, chemistry, mathmatics and so on, and as much as recent achievement of science and technology. Prof. Zhu Kezhen's idea on developing geography as mentioned above,not only played an important part in guiding and promoting the progress of geography in China in the past, but also it is good as a guideline for the present and future.