This biography chronicles the life and achievements of Zhai Guangming, a renowned petroleum exploration expert and an academician of the Chinese Academy of Engineering. It traces his journey from a determined student to a pivotal figure in China's petroleum industry, highlighting his dedicated work in the Yumen Oilfield and his participation in ten major national oil campaigns. The book explores Zhai's groundbreaking contributions to oil and gas exploration theory and his visionary approach to industrial development. More than a record of achievements, it celebrates his dedication, idealism, and unwavering commitment to advancing science for the nation, embodying the true spirit of a pioneering scientist.