Electric guitar is a kind of guitar. It uses pickups to convert the vibration of strings usually made of steel into electrical signals. This vibration usually occurs when the guitarist plays, plucks or fingertips. The vibration of strings is sensed by pickups. The most common type of pickups is electromagnetic pickups, which use the principle of direct electromagnetic induction. The signal generated by the electric guitar is too weak to drive the speaker, so before sending it to the speaker, insert it into the guitar amplifier so that the sound is loud enough to be heard. The output of an electric guitar is an electrical signal, which can be easily changed by an electronic circuit to add "color" or change the sound. Usually, signals are modified with reverb, distortion, and "overload" effects, where a low voice is a key element of electric guitar sound because it is used in blues and rock music.

The amplified electric guitar was invented in 1931, and jazz guitarists began to adopt this method. They hope to be able to play a single note guitar solo in a large band. Early supporters of recorded electric guitars include Les Paul, Lonnie Johnson, sister Rosetta tharpe, T-Bone Walker and Charlie Christian. In the 1950s and 1960s, electric guitar became the most important instrument in pop music. It has developed into an instrument that offers a wide range of sounds and styles in schools ranging from pop and rock to country music, blues and jazz. It is a major part of the development of Electric Blues, rock, rock, heavy metal and many other music genres.

The design and construction of the electric guitar vary greatly in the shape of the body and the configuration of the neck, bridge and pickup. A guitar may have a fixed bridge or a spring-loaded hinged bridge that allows the player to "bend" the pitch or chord pitch or reduce or perform a trill effect. Guitar sound can be modified by new playing techniques, such as bending strings, knocking, knocking, using audio feedback or sliding guitar playing. There are several types of electric guitars, including solid guitars, various types of hollow guitars, six string guitars (the most common type, usually from the lowest key to e, a, D, G, B, e to the highest string), seven string guitars with low B strings added below the low E, and ten two string electric guitars with six pairs of strings.

Pop and rock bands often use an electric guitar in two roles: as a rhythm guitar, it plays a chord sequence or March and improvises and sets the beat (as part of the rhythm part); as a main guitar, it performs the melody line of the instrument, the instrument filling channel and solo of the melody. In a trio (such as a trio), a guitarist switches between two characters. In larger rock and metal bands, there are usually rhythm guitarists and lead guitarists.