Residents from the South East Asian country have been deemed to have the best travel documents as they are able to enter the highest number of countries without a visa or by getting a visa on arrival.
Germany followed closely behind in second place, with Sweden and South Korea in third place with 157 respectively.
With 156, European countries such as Denmark, Finland, Italy, France, Spain, Norway and the United Kingdom managed fourth place as well as being joined by Japan in that tier.
Luxembourg, Switzerland, the Netherlands, Belgium, Austria and Portugal are the fifth most powerful countries in the Passport Power Rank. Malaysia, Ireland, the United States of America and Canada ranked in sixth place with 154 points.
Arton Capital, who compiled the index, said in a statement: "While Singapore quietly climbed the ranks, the U.S. passport has fallen down since President Donald Trump took office."
Whilst Philippe May, managing director of Arton Capital's Singapore office, added: "For the first time ever an Asian country has the most powerful passport in the world. It is a testament of Singapore's inclusive diplomatic relations and effective foreign policy."
And Armand Arton, founder and president of Arton Capital, explained the importance to some of having a second passport.
Speaking at the Global Citizen Forum in Montenegro recently, he said: "Visa-free global mobility has become an important factor in today's world. More and more people every year invest hundreds of thousands of dollars in a second passport to offer better opportunity and security for their families."