As the laser induced breakdown spectroscopy (LIBS) method can rapid, real-time, measurement in situ, and analyzing heterogeneous element at the same time and has many other merits, making it a most promising tool in soil heavy metals analysis. A Nd:YAG based LIBS experimental set-up is developed. The soil LIBS spectral is experimental measured, the calibration lines and corresponding LIBS detection limits of six most important soil heavy metals are decided. Initial indications show that the LIBS is suitable for soil heavy metals pollution determination.