Water-saving techniques in wheat cultivation were studied to improve yield and water use efficiency in the North China Plain. Instead of fixed irrigation amounts, a new method based on soil moisture levels at key growth stages was tested. Results showed that providing more water at specific stages led to higher dry matter accumulation and grain yield. The treatment with the highest soil moisture levels had the best grain dry matter ratio and filling rate, resulting in higher grain weight at maturity. However, the treatment with the lowest water use efficiency had the highest overall water use efficiency. Overall, as more water was supplied, grain yield and irrigation efficiency decreased.