The present invention relates to an intelligent motorized curtain mechanism, wherein a first mounting box, a second mounting box, a bead chain length adjustment mechanism and a bead chain are provided, and a power control mechanism and a master drive mechanism are fixedly installed inside the first mounting box. The power control mechanism is arranged to drive the master drive mechanism, which forms a synchronous belt connecting with the bead chain through the slave mechanism and enables the master drive mechanism to move the bead chain.