The micro-angle-of-attack sensor is installed inside the model for measuring its pitch angle during wind tunnel tests. It features an integrated circuit design, incorporating components such as attitude-angle sensing modules and data acquisition and processing units within the sensor itself, thereby enhancing signal interference resistance. Temperature compensation techniques and multi-level error correction methods are employed to refine measurement accuracy. Additionally, a Kalman filter is used to integrate vibration sensor data with acceleration-based angle measurements, improving anti-vibration performance and data precision. During wind tunnel testing, simultaneous corrections were made to angle-of-attack sensor readings and balance signals based on the relationship between horizontal balance X-axis measurement values and pitch angles. The results demonstrated that the pitch angle data was accurate and reliable, with synchronization meeting test requirements.