In response to the imperative need for validating aerodynamics technology through subscale model flight testing, research is undertaken to explore the angle of attack control methodology. By meticulously examining the evolutionary trajectory of subscale flight tests within the atmospheric domain, the imperative for advancing subscale flight testing through the integration of powered and autonomous take-off and landing capabilities becomes evident. This study focuses on investigating the angle of attack control techniques tailored specifically for powered and autonomously operated subscale flight tests. Leveraging a comprehensive analysis of flight parameters influencing the angle of attack, a flight test angle of attack control methodology is formulated. Subsequent flight trials are conducted within the altitude range of 4000 m, encompassing Mach numbers ranging from 0.2 to 0.45, and angle of attack variations spanning from 1.7° to 6°. The efficacy of the angle of attack control technology is evaluated and validated through these tests. The findings conclusively demonstrate the practical utility and engineering significance of this approach, thereby establishing it as a technical benchmark for diverse aerodynamic flight test endeavors.