In July, Abe's approval ratings stood below 30% because his government was hit by a string of scandals and unpopular policies.
His ratings surged to 50% in September thanks to his handling of North Korea's regular ballistic missile and nuclear tests.
Experts believed the snap elections were meant to exploit his resurgent popularity even as his party continued to dodge allegations of cronyism.
What Abe's win means for India?
Abe has long been a proponent of closer India-Japan economic and defense ties, which are crucial to counter their mutual insecurities from China's emerging power.
He has forged a close personal relationship with PM Modi, which has so far been instrumental bringing India and Japan together.
His victory would help continue the momentum in the Indo-Japan partnership in the coming years.
What does Abe plan to do?
Abe will continue pushing for constitutional amendments to revise Japan's pacifism, which he believes is essential to strengthen the country's defense against emerging North Korean and Chinese threats.
He will forge ahead with his Abenomics agenda which is characterized by a hyper-easy monetary policy, fiscal stimulus-driven growth and structural reforms.
Abe will continue pushing for closer economic and military cooperation with India.