An inlet airflow guiding structure for a computer includes a computer chassis, a front bezel, an airflow guiding space defined between the front bezel and the computer chassis, and a plurality of inlet airflow openings. The airflow guiding space and the inlet airflow openings provide a low airflow impedance inlet that facilitates the movement of the incoming inlet airflow. The front cooling fan in the computer is thereby capable of providing lower-temperature air into computer for efficiently dissipating heat generated for high-speed CPU.