Abstract: Abstract：The traditional management of aluminum electrolytic cell has some problems， such as single management mode， low transparency and weak form of parameter data presentation. In order to solve these problems， digital twin technology is introduced and applied to aluminum electrolytic cell. Based on the theoretical model and framework of digital twin， a six-dimensional model of three-dimensional visual monitoring system of digital twin aluminum electrolytic cell is proposed. Based on this model， the virtual model， scene optimization， data acquisition and data mapping of electrolytic cell are constructed. The data interface is provided by Java background， and the model and data are rendered by using three.js three-dimensional technology and JavaScript language. The system provides more intuitive display effect for field personnel to better understand the operation of aluminum electrolytic cell， and provides effective ideas for the intelligent development of aluminum industry.

Key words: Key words：aluminum electrolytic cell, digital twinning, three-dimensional visualization, monitoring system, aluminum industry