Introduction of Subaru Telescope instruments Tomonori Usuda (Subaru Telescope) Subaru Telescope has been stably operated with high image quality since its common use began in December 2000. During the decade, it has a suite of eight first generation instruments; 1) Suprime-Cam, 2) FOCAS, 3) HDS, 4) IRCS, 5) OHS, 6) COMICS, 7) CIAO, and 8) AO36, and two second ones; 9) MOIRCS, 10) AO188 providing imaging and spectroscopic capabilities over the full range of wavelengths from optical to mid-infrared. Now FMOS and LGS are commissioning on the telescope and will be available to the astronomical community in 2010. Subaru Telescope has also accepted four visiting instruments (CheSS, Kyoto-3DII, HIPWAC, and HiCIAO) to make full use of their uniqueness of each instrument. As future instruments, Subaru Telescope has now two concrete plans: 1) HSC: a new optical wide field imager which is now being developed to start its commissioning in 2011. 2) WFMOS: a wide field fiber-fed optical multi-object spectrometer that its conceptual design has just been reviewed in February 2009 by Gemini Observatory. This talk will give introduction of current instruments with a few scientific results and future instrument upgrade plans on Subaru Telescope.