To improve the accuracy of the present calculation methods and technical means in predicting the helicopter control and load characteristics, this paper adopts the flight test method to carry out the research of control and load characteristics on a certain type of helicopter, which obtains four control variables, two attitude angles and the measured results and variation curves of the load of key components in actual flight environment. The analysis of the measured results and variation curves shows that the control and load characteristics of the helicopter obtained by the measurement are correct and effective. The research results have great significance for improving and optimizing the current calculation methods and technical means, and improving the prediction accuracy.