The invention discloses a socket with easy series connection. The socket comprises a socket body and a plug with a wire, the socket body is formed by series connection of single sockets with a predetermined quantity in sequence, each two adjacent single sockets are connected in series via a connecting projection and a connecting groove in a cooperative manner, the single socket at the head portion is provided with a switch used for controlling the switch-on of the whole socket, each single socket is provided with one jack, a controller, emitters with a predetermined quantity, receivers with a predetermined quantity, and detectors with a predetermined quantity are arranged in the socket body, the emitters, the receivers, and the detectors are connected with the controller, the jacks with the predetermined quantity, the emitters with the predetermined quantity, the receivers with the predetermined quantity, and the detectors with the predetermined quantity correspond to each other, and a first memory and a second memory are also arranged in the socket body. According to the socket with easy series connection, series connection of the single sockets can be randomly realized, the quantity of the jacks can be changed, energy saving is realized, the usage frequency of each jack of the socket can be recorded, the balance of the usage frequency of each jack is facilitated, and the service lifetime of the jacks is extended.