天字罐是成化的首创，纹饰有海马纹、花草纹，惟独没有人物纹。罐底书写的“天”字，特征是无栏无框。明清瓷器底下写“大明万历年制”、“大清乾隆年制”，不是加双蓝圈，就是加一个方框。

Tianzi pot is chenghua's first, decorated with seahorse grain, flowers and grass grain, but no character grain. On the bottom of the pot is written the word "day", which is characterized by no column and no frame. Ming and Qing porcelain under write "Ming Wanli year system", "Qing Qianlong year", not add double blue circle, is to add a box.

传世器物中有在海水飞马罐底书“天”字的，也有在爪龙罐底书“天”字的。成化斗彩天字罐因其名贵，故从明后期至清代各朝都有仿制，其中尤以清康熙和雍正两朝仿品最为逼真。康熙朝仿品瓷器胎体厚重，雍正、乾隆朝胎薄质细，釉下可见明显的旋纹。

Handed down in the sea water pegasus pot bottom book "day" of the word, there are also in the claw dragon pot bottom book "day" of the word. Chenghua doucai tianzi pot because of its precious, so from the late Ming dynasty to the Qing Dynasty, there are imitation, especially in the Qing Kangxi and Yongzheng two imitation of the most realistic. Kangxi dynasty imitation porcelain body thick, Yongzheng, Qianlong dynasty embryo thin quality of fine, visible under the glaze of the obvious swirl.

总的来看，仿品纹样大多显得工细有余而流畅不足，各种色彩的呈色以至款识的书写特点均与真品存在一定的差别。

Generally speaking, the patterns of imitation products are mostly fine and smooth, and the color of various colors and even the writing characteristics of knowledge are different from the real products.