The invention discloses a motorcycle cylinder body with a cylinder temperature sensor, which comprises a cylinder body (1) and a cylinder cover (2), wherein the cylinder cover (2) is fixed at the top end of the cylinder body (1) through a bolt (3), and the cylinder temperature sensor (4) is fixed on a platform (3a) for installing the bolt (3) at the rear part of the cylinder cover (2). The cylinder temperature sensor is installed by artfully utilizing the platform on the cylinder cover and a fastening bolt between the cylinder body and the cylinder cover, thereby the invention not only satisfies the rapid and steady installation requirements of the cylinder temperature sensor, but also can ensure the cylinder temperature sensor to accurately and reliably transfer temperature signals and has the characteristics of novel conception, simple structure, convenience, reliability, easy disassembly and assembly and the like.