Background: Five roots, three trunks, six divisions (three anterior and three posterior), three cords, and five branches make up the brachial plexus. Supraclavicular, infraclavicular (ICB), or axillary brachial plexus blocks are often used in regional anaesthesia for distal upper limb operations. The well-known and straightforward retroclavicular route for brachial plexus anaesthesia is used. One of the methods for numbing the brachial plexus is the retroclavicular block. In this method, the needle was placed above the clavicle's midpoint. It is a great option for hand and elbow surgery. Objective: This review article compared the needle visualisation, success rate, and timing of the beginning of the sensory and motor block in supraclavicular and retroclavicular brachial plexus blocks. Methods: Supraclavicular approach, Retroclavicular approach and Brachial plexus block were searched for in PubMed, Google and Google Scholar. Only the most current or comprehensive study was included after the authors thoroughly filtered references from the pertinent literature, which comprised all the recognised studies and reviews. Conclusion: Supraclavicular approach has better needle visualization than retroclavicular approach and better success rate but has shorter duration of both sensory and motor block.