The development of Internet of Things and artificial intelligence has greatly advanced the design and implementation of remote monitoring systems for intelligent healthcare services, of which the sensing and data analysis components play central roles. To this end, we propose a smart clothing-based ubiquitous health monitoring system, called uHealth, to collect physiological signals and behavioral data of the users and to support high-level applications. Specifically, we here introduce the design of smart clothing and illustrate the architecture of uHealth and its key components.