Soybean-maize strip composite planting is an intensive and efficient planting mode, which has significant advantages in improving land use efficiency, reducing production costs, and increasing the stress resistance of the planting system. The key points of efficient application technology of fertilizer and water in soybean-maize strip composite planting in southwestern Shandong region, as well as the technical advantages and existing problems of composite planting mode, are summarized. The forward follow-up promotion suggestions are proposed as well.