Since multiple signals classification(MUSIC)algorithm has large calculation quantity and low estimation speed when estimating two⁃dimensional angle of arrival(AOA),two⁃dimensional MUSIC spectrum⁃peak searching algorithm based on data interpolation is studied. On the basis of MUSIC algorithm,larger step is applied to proceed rough searching in two⁃dimen⁃sional space,then two⁃dimensional interpolation is conducted in minizone near searched spectrum⁃peak position. Spectrum⁃peak searching is carried on in the zone with smaller step,and precise angle estimation value is obtained. Simulation experiments in⁃dicate that the algorithm can reduce calculation quantity in two⁃dimensional space searching effectively.%针对MUSIC算法在进行二维到达角估计时运算量大、估计速度较慢的问题，对基于数据插值二维MUSIC谱峰搜索算法进行研究。在MUSIC算法的基础上先用较大步长在二维空间进行粗略搜索，之后在粗搜谱峰位置附近的小区间内进行二维插值，最后用小步长在该区间内进行谱峰搜索，得到精确的角度估计值。仿真实验表明，该算法可有效地减少二维空间搜索的运算量。
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