This study explores the application of cloud computing technology in basic computer teaching in colleges and universities, analyzes its application scenarios in teaching resource sharing and optimization, virtual laboratory construction, personalized teaching support, and cross-school resource collaboration. It elaborates on its advantages in improving teaching efficiency and optimizing resource allocation, while pointing out challenges such as technical issues, data security, and teachers' and students' adaptability, and proposes corresponding countermeasures, providing references for the informatization development of basic computer teaching in colleges and universities.