A method for autonomous imaging parameters’ adjustment based on solar elevation from remote sensing theory is proposed in this paper. The factors which influence imaging quality and the relationship between apparent radiance and solar elevation are firstly discussed. Then, the integral time change under different roll angles in one orbital period and the internal links among solar elevation, roll angle, integral grade and gain are analyzed. Finally, the best grading strategy is obtained and the two-dimensional lookup table which can be used for the autonomous imaging parameters’ adjustment is built. The use of two-dimensional lookup table improves the image radiation quality and fairly reduces satellite’s control workload.