To avoid the problems of the classical Czerny-Turner imaging spectrometer, such as large aberration and low spatial resolution, a novel method of aberration correction for Czerny-Turner imaging spectrometer carried by satellite is developed. The principle and method of aberration correction are deduced in detail. A design example operating in 540～850 nm wavelength band with 2.3°field of view, 114.8 mm focal length, 3.81 F number is designed. The ray tracing and optimization for the optical system are carried out with Zemax software. The results demonstrate that the aberration of the optical system is substantially corrected, and the modulation transfer function of total field of view is more than 0.58, which satisfies the requirement, and proves the feasibility of the method.