In July 2009, MAXI and Japanese Experiment Module “Kibo” Exposed Facility (JEM-EF) were delivered to the International Space Station (ISS) by Space Shuttle Endeavor and were completed by the robot-arm operation of Koichi Wakata and ISS Crew. MAXI was powered on in August/03/2009, and MAXI observation has been started from August/17/2009. We report the recent one year operation status of the MAXI and ISS. The operation of MAXI did not so go well easily. It suffered from some troubles of communications. “Kibo” Operation team and MAXI Operation team have improved some on-board telecommunication system and the ground equipments to store MAXI data more completely. Now, MAXI observation data are almost completely delivered to our analysis system.