The invention discloses an internet-of-things printing device and a renting monitoring management system and belongs to the field of printing equipment. The device and the system aim to solve the problems that in the prior art, a monitoring device is easy to take down, cannot be used for detection easily, and causes lessee losses and is simplex in payment mode. The printing device comprises a printer and a monitoring device. The monitoring device is connected with a control module in the printer and connected with an external computer. The renting monitoring management system of the printing device comprises a plurality of monitoring devices and a cloud server, controller information is sent to the cloud server through a communication device, and after being processed by the cloud server, the corresponding information is sent to a client device, a server device and a factory device. By means of the printing device and the system, inner signals of the printer can be directly detected through a detection device, the detection device is not easy to take down, payment modes are diversified, and portability is good.