Due to the short wavelength of the signal in synthetic aperture ladar (SAL), the spot size is very small, which limits the imaging field. For this problem, the common wide-scene imaging mode in synthetic aperture radar (SAR), i.e., the TOPS imaging mode, is extended and applied in SAL, and according to the signal characteristic of SAL, a suitable imaging algorithm is proposed. The azimuth pre-filtering based on the spectrum analysis is adopted to eliminate the aliasing caused by the steering of the antenna beam and the signal spectrum without alias is obtained. The improved frequency scaling algorithm (FSA) is used to complete the range compression and range cell migration correction. Also, the Doppler frequency shift induced by the continuous movement of the platform is compensated. With the dechirp technique, the signal is focused in the Doppler domain and the SAL image without blurring is obtained. Simulation results are provided to demonstrate the effectiveness of the proposed method.