This paper takes the poem Tiaotiao Qianniuxing 迢迢牽牛星 (one of the Nineteen Old Poems古詩十九首 ) as an example, and discusses it in relation to Yu Xin's Qixi shi 七夕詩 and Su Shi's Qixi ci 七夕詞, to show that in the process of interpreting the context of a Chinese classical poem, we may get a better explanation if we analyze it within the context of its reception history.