The current status of the 1.5 GeV Taiwan Light Source (TLS) in NSRRC is reported. The TLS is operated approximately 5,000 hours per year with an availability >97%, a trip rate <1.5/month and a photon beam stability (intensity fluctuation of photon beam) < 0.1% during most of the user’s beam time. Lots of improvements have been done to fulfill the user’s requirements on the reliability and beam stability of the machine. In addition to the efforts made to the existing facility, a superconducting cavity and some superconducting wigglers are constructed to increase beam currents and to reduce the higher-order-mode instability, as well as to offer harder x-rays to users. In the mean time, the top-up injection mode is to be implemented to enhance mirror stability in the photon beam line. An IR-FEL facility is planned, in a hope to open a new area of research


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