This is the code for the paper "Semisupervised Remote Sensing Image Fusion Using Multiscale Conditional Generative Adversarial Network With Siamese Structure" Cite this article: X. Jin, S. Huang, Q. Jiang, S. -J. Lee, L. Wu and S. Yao, "Semisupervised Remote Sensing Image Fusion Using Multiscale Conditional Generative Adversarial Network With Siamese Structure," in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 14, pp. 7066-7084, 2021, doi: 10.1109/JSTARS.2021.3090958.