Aiming at the Stocks measurement model of continuous rotation polarization imaging system, the factors that affect the model are analyzed, such as initial exposure angle error, uneven rotation speed of polarizer, optical axis deflection, and puts forward the imaging design constraints of a quasi-real-time polarization detection system based on continuous rotation. Combined with the actual situation, the calculation method of polarization dimension information based on a sliding window is introduced, and various errors affecting the measurement are simulated and analyzed by using the established model. The results show that the size of the exposure angle will not have a great impact on the acquisition of polarization dimension information, and the influence of uneven rotation speed on the stocks parameter decreases with the increase of rotation speed. To ensure that the error of the Stocks parameter is less than 0.01, the absolute value of the initial deviation angle calibration error should be less than 0.573°, and the absolute value of the optical axis deflection angle should be less than 11.422°.