In order to explore the effects of porous amendments on the contents of heavy metals (Cr, Cd and Pb) in flue-cured tobacco fields in Bijie City of Guizhou Province, a field experiment was conducted and four treatments were designed, i.e., CK (No amendment), T1 (maize straw incorporation), T2 (porous soil amendment) and T3 (70% T2 and 30% bamboo charcoal). The results showed that soil Cr, Cd and Pb contents in the study area were lower than the 2nd Grade of National Soil Environmental Standard, which indicated the soils are safe and clean. Different soil amendments not only improved soil physiochemical properties, but can also significantly reduced Cr and the availability of soil Pb. Among different amendments, T3 treatment had the best effect, and the soil Cr and available Pb decreased by 26.4% and 17.2% respectively. The use of porous physical structure amendments in Bijie tobacco planting area didn’t increase the risk of heavy metals of soil Cd and Pb, but reduced the content of soil available Pb, thus, could archive the dual goals in reducing soil compaction and heavy metal availability.