Biofilms are sessile microbial life forms recognized for their surface adherence and the formation of extracellular polymeric substances consisting of a gluey network that surrounds the cells. Biofilms can be produced by bacteria such as Klebsiella pneumonia. Several studies investigate strategies, including the use of essential oils to detain, reduce or even eliminate their formation, especially in hospital medical supplies. The present study performed a systematic review among different databases about the use of essential oils in the control of K. pneumoniae biofilm formation. Because of this bacteria's proclivity for acquiring resistance, the selected research shows that this is a good model. The search for alternative techniques to manage these diseases is extremely important because a large proportion of bacteria do not react to traditional therapies, making control impossible. The current study focuses on high-impact published studies and show that essential oils are efficient against K. pneumoniae, mainly because of their resistant nature. Because certain bacterial strains do not respond to standard therapies, the hunt for new approaches to control this infection is critical. After an extensive search in the literature, a high number of studies related to this topic were found, from which we selected 120 among all.