釉裏紅是中國陶瓷史上極難燒制的品種之壹,它以銅紅料為著色劑在瓷胎上繪畫,因銅紅料極端敏感的特性和窯爐內還原氣氛人工難以控制的原因,其呈色極易偏差。此瓶造型垂腹較元代更為寬大,圈足變淺,瓶頸略顯舒展,而重心雖卻比永樂器稍高; 以造型而言,此瓶正處於景德鎮玉壺春瓶樣式的轉折時期。 Youligong is extremely difficult to fire one of the varieties of Chinese ceramics history, it with copper red material for colorant painting on porcelain body, because of the characteristics of copper red is extremely sensitive and kiln reduction atmosphere within the artificial uncontrollable reason, its color deviation easily. The shape of this bottle is wider than that of yuan dynasty, the circle is shallower, the bottleneck is slightly relaxed, and the center of gravity is slightly higher than that of the instrument. In terms of modeling, this bottle is in the jingdezhen yuhu spring bottle style transition period.