In this study, the curing of the poured concrete with the Internet of Things (IoT) based smart irrigation system was carried out in order to prevent cracking by shrinkage during the hydration process. For this purpose, moisture sensors are placed on the surface of fresh concrete in different regions. In case of a decrease in the concrete surface moisture, the current moisture condition was detected by the sensors and the water motors were automatically activated and the irrigation process was carried out on the entire concrete surface with the water spray device placed on the concrete surface. When the humidity level reaches a enough level, it is detected by the sensors and the irrigation process is stopped automatically. These transactions are monitored on the internet with wireless network technology during the entire application period. Thus, the curing process, which must be done from the casting of the concrete until it gains enough strength, especially in the summer months, is ensured to remain damp automatically and automatically without the need for a person to wait in the area. Thus, better quality concrete production has been achieved compared to conventional concrete curing methods.