The most important poetry discussion in "Sih-Lin poetry criticism" is to use Zen to criticize poetry. It uses theory of Zen in "Yun Men three sentences" to discuss Tu Fu's poetry. This consists of plenty of poetry subtext. This kind of expression is also a very special method in the poetry criticism in Song dynasty. However, as for "sequence" in the Tu's poetry which Yen Men De discussed, does it mean the sequence difference in the time when these three sentences of poetry were written? Or does it mean the sequence difference in the thought of Tu's poetry? This paper is going to discuss deeply based on the sequence which Yen Men De discussed, as well as to analyze Zen in "Yun Men Three Sentences" and appreciation of the beauty plus poetry subtext in the three sentences of poetry in Tu's poetry.