這篇文章的目的是要去學習有關對流型的非線性薛丁格方程的奇異極限。首先，我們可以利用兩種不同的方法，去獲得對流型非線性薛丁格方程的一些守恆律。然後利用疊代的方法，在一段時間內，我們可以建立出古典解的局部存在性並且也可以把解的唯一性都證明完成。最後，我們去證明有關半古典解的極限。

　The purpose of this paper is to the study of singular limit for the convective NLS equation.
　First, we use two different methods to get conservation laws of the convective NLS equation.
　And then the local existence in time of the classical solutions can be established via an iteration method and the uniqueness of the solution is also proved.
　At last we prove the semiclassical limit of the solution.

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