Rice throwing (seedling broadcasting) has become one of the predominant simplified cultivation method in the southern rice cropping regions of China, wherein rapid seedling establishment is a critical determinant for achieving high and stable yields. This study reviewed the evolution of rice planting methods in China and comparatively analyzed the comprehensive advantages of rice throwing over manual transplanting, mechanical transplanting, and direct seeding. Focusing on three core aspects—centralized seedling raising and supply, seedling establishment regulation, and throwing operations—systematic experiments were conducted on substrate ratios, sowing rates, stacked tray germination, seedling management, field preparation, water layer control, as well as throwing height and angle. The results indicated that the optimal seedling quality was achieved when the nursery substrate was formulated with a loess-to-substrate volume ratio of 1∶1 to 2∶1, a bulk density maintained at 0.6-0.8 g/cm³, and a covering soil depth of 0.5 cm after sowing. For seed allocation per hole, 2-3 seeds for hybrid rice and 3-4 seeds for conventional rice effectively balanced seedling emergence rate with seedling quality. Furthermore, using hard bowl trays for stacked germination under conditions of 30 ℃-32 ℃ and 90.0% relative humidity significantly improved the uniformity of seedling emergence. For field throwing, the soil surface should be leveled and softened, with the water layer maintained at ≤3.3 cm. Maintaining the throwing angle above 30° under upward seedling- throwing conditions could significantly increase the proportion of upright seedlings. Depending on the planting scale, field conditions, and labor availability, farmers can opt for manual throwing, small backpack throwers, or large-scale ordered/air-blown transplanters. Additionally, this study clarified the suitable seedling ages for different stubble types, along with integrated techniques for seedling field management, field fertilization, irrigation, and pest control. Consequently, a complete technical system for centralized seedling raising and throwing was established, providing a technical reference for efficient and simplified rice production in double-cropping areas of southern China, particularly for special terrains such as hilly and low-lying fields.