A "three-carbon economy" is introduced in this article which includes three parts: planting sandy shrub to prevent and control desertification, generating electricity with shrub branches, and feeding spirulina with the smoke. The three parts are also correspondingly the process of CO₂ absorption, carbon emission reduction, and carbon capture, forming a carbon industrial chain. This chain makes the farmers initiatively plant shrubs in sand, and desert control turns to easy thing by benefiting the bio-power factory, the farmers, and also the environments. This industrial chain will contribute to our national desert control strategy.