Abstract: Microplastics as emerging pollutants have been detected in many environmental media and organisms. Their potential environmental risks have attracted wide attention in recent years. Mangrove forest is an essential ecosystem in the transition zone from land to ocean and an essential habitat for fishery resources. While a few studies addressed the abundance and distribution of microplastics in the mangrove forests, the toxicities of microplastics to those ecosystems remained largely unknown. Here, we review the source and distribution pattern of microplastics in the mangrove forest and evaluate the potential threats of microplastics to the mangrove health, and the possible degradation pathway of microplastics. We analyzed the problems during microplastic pollution prevention in the mangrove forests and proposed perspectives on microplastics pollution prevention, aiming to provide scientific support for mangrove ecosystem management.

Key words: mangrove, microplastic, source, distribution, degradation.