1、 Judging from the overall picture effect, the authentic picture is clear and lifelike, while the imitation picture is blurred and blurred, which seems to be separated by a layer of clouds, so it is difficult to see the real picture.

二、從印刷油墨上來鑒別，真品油墨色彩鮮艷飽和，有陰陽深淺的印刷變化，仿品油墨暗淡偏色無印刷層次變化，因存放時間長短不同，如果我們拿電吹風對著畫面吹一下，仿品能聞到濃烈的油墨味，真品只能聞到紙張的霉變味。

2、 Judging from the printing ink, the authentic ink has bright and saturated color, and there are printing changes in the depth of yin and yang, while the imitation ink has no printing level changes in the dark and partial color. Due to the different storage time, if we blow the hair dryer on the screen, the imitation can smell the strong ink smell, and the authentic can only smell the mildew smell of the paper.

三、從紙張上來鑒別，真品多采用單面膠紙，紙張薄軟，易折卷，自然泛黃，油墨沁透紙背，從后面也能觀察到畫面的輪廓，仿品多為雙面膠紙，紙張厚硬光滑，不易折卷，人為做舊發(fā)黃不均勻自然。

3、 Judging from the paper, the authentic paper is mostly single-sided adhesive tape, which is thin and soft, easy to roll, naturally yellowing, and the ink penetrates the back of the paper. The outline of the picture can also be observed from the back. The imitations are mostly double-sided adhesive tape, which is thick, hard and smooth, not easy to roll, and artificially old, uneven and natural yellowing.

四、從出版社的署名來鑒別，真品署名規(guī)范齊全，字體小，字跡印刷清晰，仿品署名不標準，字體大，字跡印刷模糊，甚無署名。

4、 Judging from the copyright signature of the publishing house, the authentic copyright signature is standardized and complete, with small font, clear handwriting, non-standard imitation signature, large font, blurred handwriting and even no copyright signature.

五、從市場經(jīng)驗來鑒別，如某一藏品本身存有疑點，又在某一時間源源不斷在藏市中涌現(xiàn)，不斷下跌，市場難以消化，就應(yīng)該引起我們的警覺。

5、 Judging from market experience, we should be alert to the fact that there are doubts about a certain collection itself, and it keeps emerging in the Tibetan market at a certain time, and the price keeps falling and the market is difficult to digest.