Abstract: A method for solving object data based on imaging matrix is proposed. Through one-dimensional processing of the object and image matrixes, a two-dimensional imaging matrix is constructed.Thus, the operation rules of image matrix by convolution of object matrix and point spread function matrix were transformed into the image vector by one of the product of object vector and imaging matrix.Finally, the image vector is obtained by multiplying the vector by the inverse matrix, precise solution of the object data from the image data of optical system is realized and the calculation error can reach the order of 10^-12.