In order to effectively improve the operability and scalability of wearable device users, a low-cost wearable system devices based on multiple sensors and supporting cloud services is designed. Each node of the system consists of 5 sensors and a micro-controller Arduino Uno. The device in this paper includes microcontroller Arduino uno and five sensors, which are heart rate sensor, respiratory sensor, stress anxiety sensor, body temperature sensor and blood glucose sensor. Body attribute data monitored by the sensors is sent to the application in real time through MQTT protocol. These data are stored in the cloud for communication between doctors and patients. The most important feature of the proposed system design is the effective combination of cloud computing and wearable technology, which can achieve the monitoring and management of the patient's health status, and the operation is simple and convenient, the operability is strong. At the same time, the software and hardware of the system is feasible, which has the advantages of low cost and large area popularization.