This study systematically summarized the state characteristics of the batch layer in glass full-electric furnaces with a daily production capacity of 3-60 tons. It deeply analyzed the influencing mechanisms of key factors such as batch composition, melting rate per unit area, electrode insertion method, and position on the height of the batch layer. Through longitudinal comparative analysis, it was found that there is no direct correlation between the height of the batch layer and the furnace output. The conclusions of this study provided an important theoretical basis for determining the height of the batch layer in the design of full-electric melting furnaces with a daily production capacity of 100 tons and above.