"EVA Air has successfully completed all joining requirements and I can confirm that our chief executive board has now unanimously accepted EVA Air into our alliance," Star Alliance CEO Mark Schwab announced at a ceremony in the north of the island.
The move could see an increase in the carrier's occupancy rate by up to three percentage points, according to chairman Chang Kuo-wei, as passengers benefit from greater integration with leading airlines.
It took EVA Air a year and half to meet the alliance requirements, foremost the adjustment of its computer systems that will enable passengers to use air miles earned through other alliance members.
EVA, Taiwan's second largest airline, becomes the 28th member of the Star Alliance, which also includes carriers such as Lufthansa, Thai Airways International, United Airlines and Air Canada.