Electrochemical sensors based on transition metal materials for phenolic compound detection have gained significant attention due to their high sensitivity, cost-effectiveness, and versatility in various applications such as water quality, food safety, and healthcare. This review highlights the development of advanced transition metal-based electrocatalysts for the detection of phenolic compounds, emphasizing their catalytic activity, stability, and efficiency. Transition metal oxides, sulfides, selenides, and phosphides are key materials in this field, offering unique properties such as high surface area, good conductivity, and enhanced catalytic performance. For instance, Cu₂O, Co₃O₄, and MoS₂ have been used to detect various phenolic compounds with high sensitivity and low detection limits. Transition metal selenides like FeSe₂ and Cu₂Se have also shown promising results in detecting phenolic compounds due to their enhanced electrochemical activity. Similarly, transition metal phosphides such as CoP and NiCoP have been utilized for the detection of molecules like dopamine and BPA. The integration of these materials with carbon-based nanostructures further enhances their performance by improving conductivity and surface area. The review also discusses the importance of optimizing the structure, composition, and morphology of these materials to achieve better electrochemical responses. Overall, transition metal-based electrocatalysts offer a promising solution for the sensitive and efficient detection of phenolic compounds in various environmental and biological applications.Electrochemical sensors based on transition metal materials for phenolic compound detection have gained significant attention due to their high sensitivity, cost-effectiveness, and versatility in various applications such as water quality, food safety, and healthcare. This review highlights the development of advanced transition metal-based electrocatalysts for the detection of phenolic compounds, emphasizing their catalytic activity, stability, and efficiency. Transition metal oxides, sulfides, selenides, and phosphides are key materials in this field, offering unique properties such as high surface area, good conductivity, and enhanced catalytic performance. For instance, Cu₂O, Co₃O₄, and MoS₂ have been used to detect various phenolic compounds with high sensitivity and low detection limits. Transition metal selenides like FeSe₂ and Cu₂Se have also shown promising results in detecting phenolic compounds due to their enhanced electrochemical activity. Similarly, transition metal phosphides such as CoP and NiCoP have been utilized for the detection of molecules like dopamine and BPA. The integration of these materials with carbon-based nanostructures further enhances their performance by improving conductivity and surface area. The review also discusses the importance of optimizing the structure, composition, and morphology of these materials to achieve better electrochemical responses. Overall, transition metal-based electrocatalysts offer a promising solution for the sensitive and efficient detection of phenolic compounds in various environmental and biological applications.