<p>Plasmonic is a method of manipulating light at the nanoscale by means of surface plasmon polaritons (SPPs), it has emerged as a compelling platform for nanoscale optical logic. Plasmonic all-optical combinational logic circuits are significant components that will be vital towards the creation of all-optical networks in the future, in addition to being a promising finding in the region of nanoscale optical computing, utilizing special characteristics of electromagnetic waves associated with electron oscillations at metallic-dielectric surfaces, known as surface plasmon polaritons (SPPs), to carry out nanoscale logic operations in order to accomplish logical processes that are extremely small, fast, and minimal power consumption. A research review provides a comprehensive overview of all optical combinational logical circuits (Half Adder, Full Adder, Half Subtractor, Full Subtractor, Multiplexer, Demultiplexer, Encoder, Decoder, Comparator, Priority Encoder, Parity Generator/Checker, Binary to Gray Converter, Gray to Binary Converter and Magnitude Comparator) according to its design techniques and applications. In addition, we have classified combinational logic circuits to five categories as arithmetic circuits, data routing circuits, coding and decoding circuits, error detection and code conversion, comparison. The basis for these combinational logic operations is constructive and destructive interference between inputs signal. Plasmonic logic circuits are Extremely compact (nanoscale), Capable of THz-level speed, Suitable for integrated photonic system. Plasmonic combinational logic circuits represent a promising approach to nanoscale optical computing. Despite challenges, ongoing advances in materials science and nanofabrication pave the way for integrating plasmonic logic gates into practical devices, potentially transforming information technology.</p>