Qian Lingxi was born in Wuxi, Jiangsu Province. In 1938, after receiving the title of "Summa Cum Laude Engineer" from the Free University of Belgium, he returned to China to participate in the construction of the Xukun Railway. In 1954, he was selected as one of the first members of the Chinese Academy of Sciences. In the early 1960s, Qian Lingxi resolutely took on the task of stability analysis of submarine structures under static water pressure for cones and cylindrical shells, and together with his assistants, researched advantageous and disadvantageous forms and theoretical analysis methods for complex-shaped cone-cylinder combined shells. This method was successfully applied to the development of China's nuclear submarines and was incorporated into national design standards, later winning the 1978 National Science Conference Award and the 1982 National Natural Science Third Prize. In the early 1980s, recommended by Qian Xuesen, the first president of the Chinese Society of Theoretical and Applied Mechanics, Qian Lingxi was elected as the second president of the Chinese Society of Theoretical and Applied Mechanics. Qian Lingxi founded the journal "Computational Structural Mechanics and Its Applications" and became one of the founding members of the International Association for Computational Mechanics.