Abstract: To improve seed corn yield and benefit, a flowering stage regulation technology combined with multi-sensor monitoring and a corresponding digital promotion model were designed, taking Hongxiang Town, Liangzhou District, Wuwei City, Gansu Province, as research area．A satellite-ground collaborative monitoring system and a dynamic flowering stage prediction model have been constructed, supplemented by a precision water-fertilizer regulation system and a pest and disease control system, to create a government-industry-academia-research-application promotion framework．Empirical results have shown that flowering stage synchronization rate in experimental treatment reached 92%, a 21 percentage points improvement over control treatment; yield increased by 21.5%, indicating remarkable effectiveness of technology's promotion．