Microplastics are a sort of developing contaminant that are present in large quantities in soil and are still moving and changing. The possible dangers that microplastics (MPs) entail to the ecological system and soil welfare have recently drawn a lot of attention. The main ways that MPs got into soil were through organic fertilizer and mulch breakdown and landfilling of plastics and their distribution in soil systems displayed notable geographical heterogeneity. Leaching and bioturbation speed up the movement of MPs both vertically and horizontally via soil systems, extending their area of contamination. The primary factors that encourage behind the physical, chemical, and biological alterations of movement of MPs in topsoil include mechanical wear, the oxidation process, and biological processes. In addition, movement of MPs has an impact on soil structure, nutrient cycling, and the microbial population. The shape, kind of polymer, size, and degree of MP movement all affect these effects. MPs have an impact on the soil biota by obstructing oxygen flux, enzyme activity, and associated coding genes in addition to microorganism diversity and structure. In addition, chemicals produced by MPs may have an impact on microbial activity. This chapter will aid in a better understanding of how MPs behave in soil considering the possible risks they present to biotic communities and soil health.