铸造方形器要比圆形器困难，何况象司母戊鼎这样的重器，工艺复杂程度，在当时的生产力水平下，其困难可想而知，这就要求制作者有相当高的技术水平。关于大鼎的铸造方法，根据研究者的观察分析，认为大鼎是采用组芯的造型方法，即先用粘土塑造泥模，用泥模翻制陶范，再把陶范合到一起灌注铜液。从铸造痕迹来看，司母戊鼎使用二十块范畴铸成的。一次铸造成功如此巨大的器物，本身就是一个奇迹，它标志着商代青铜器铸造技术的发展水平。
It's more difficult to cast square ware than round ware. Besides, the process complexity of heavy ware such as simu Wuding is obvious at the productivity level at that time, which requires the producer to have a fairly high technical level. As for the casting method of Dading, according to the observation and analysis of the researchers, it is considered that Dading adopts the core forming method, i.e. molding clay mold first, turning clay mold into ceramic mold, and then combining the ceramic mold and pouring copper liquid together. From the perspective of casting trace, Si Muwu Ding is made of 20 pieces. It is a miracle that such a huge artifact was successfully cast. It marks the development level of bronze casting technology in the Shang Dynasty.