Interpolation is an ancient and practical approach mostly used for function approximation .In view of that different interpolation methods have different advantages and disadvantages , this paper is aimed at the re-search on how to solve Runge phenomenon appearing in the Lagrange polynomial interpolation .In practice, piece-wise linear interpolation is frequently used to avoid high order interpolation Runge phenomenon , while MQ quasi-in-terpolation can also be applied for the high-order interpolation Runge phenomenon solution by real example analy-sis.%本文对拉格朗日插值法在高次插值时出现的龙格现象展开研究。通过实例分析可知， MQ拟插值可以解决高次插值时出现的龙格现象。
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