爱丽儿是海中一条自由自在的小美人鱼，她向往自由，海底的世界似乎她看得有点厌了。这天，她突发奇想，想冲出海底，看看陆上精彩的世界。于是，她就真的冲破了美人鱼的限制，浮上了海面。当她看到了英俊的王子时，她彻底被征服了。为了能和王子相爱，小美人鱼爱丽儿决定以自己美丽的歌声为代价，换取一双平常人类女子的腿。在好朋友的支持和鼓励下，爱丽儿不顾一切向着自己的梦想出发！In Disney's beguiling animated romp, rebellious 16-year-old mermaid Ariel is fascinated with life on land. On one of her visits to the surface, which are forbidden by her controlling father, King Triton, she falls for a human prince. Determined to be with her new love, Ariel makes a dangerous deal with the sea witch Ursula to become human for three days. But when plans go awry for the star-crossed lovers, the king must make the ultimate sacrifice for his daughter.