Abstract: To track the research progress of weathering effect in the field of accelerant identification, offering some reference to domestic work on weathering interference, this article reviewed relevant research both in China and other countries. The content mainly included the effect of weathering on ignited liquid and its residue of combustion, the exclusion of weathering interference in ignited liquid identification, the connection between weathering interference and other interference. Additionally, the prospect of research interests on weathering effect was outlooked. 

Key words: weathering effect, ignited liquid, evidence identification, fire investigation