Abstract: The continuous progress of science and technology has promoted sports training towards the direction of new ideas, new technology and new equipment. Wearable devices, which are based on mobile Internet, cloud platform and have the functions of wireless transmission and fast real-time feedback, have been widely used in sports training, thus providing a more convenient and scientific way to explore the biological significance of sports training. But some problems are as follows: several measurement errors still exist in the application of wearable devices in sports training, affecting the validity and reliability of data; and there is poor compatibility and interconnection among data due to the absence of unified data standards; besides, integration is required for a further improvement because of the relatively single index collection; what's more, much attention is paid to commercial development, and there is no complete industrial chain. It's development trends in the field of sports training include: seeking training improvement by monitoring frequency, formulating industry standards in a properly way; optimizing the integration of industrial chain as so to accurately dock with needs; further increasing equipment compatibility and cloud interconnection; promoting the micro integration of sensor technology to make wearable device more comfortable and safe.

Key words: competition sports, wearable devices, sports training, training monitoring