This study analyzed the yield formation and stability of wheat variety Jinghua 12 based on data from 2014-2016 National Northern Winter Wheat Regional Trials. The results showed that Jinghua 12 exhibited significant yield increases in the National Northern Winter Wheat Regional Trials for two consecutive years. Jinghua 12 had a plant height of 83 cm and showed strong resistance to lodging. It had an average effective spike number of over 606.6×10⁴ spikes/ha, more than 32 grains per spike, and 1 000-grain weight exceeding 47.0 g, indicating coordination among the three yield components. Jinghua 12 also exhibits broad adaptability, with both dynamic and static stability. The variety's high spike formation rate and strong self-regulation ability allow it to perform well across a yield range of 6 885-10 170 kg/ha, making it a promising new wheat variety for high yield and wide adaptability.