Spongebob is an animated film bearing memories of children's times, and its soundtrack refers to the dialogue and background music spoken by the characters in the animated film. The original sound of Spongebob is full of childlike interest and sense of humor, which makes people feel as if they were children. One of the most classic soundtracks is Spongebob's shrill voice and his mantra: "Hi, dear friends!" "

Besides Spongebob's soundtrack, the soundtracks of other characters in the cartoon are unforgettable. For example, the owner of Shell Street, Mr. Crab, has a gradual tone and eccentric nodding, and Patrick the Starfish, who is always full of justice, has a charming voice. The original sound design and dubbing of these characters make the whole cartoon more vivid and interesting.

In addition to the cartoon itself, the original sound of Spongebob has also become a weapon of commercial marketing. Spongebob's pet phrase, "Happy Lotto Be Careful" and so on have all become buzzwords, which are used to represent happiness and humor. In addition, the image of Spongebob has been carefully designed as various mascots, such as cell pens and instant noodles. It can be said that the soundtrack of Spongebob moved the development of the whole IP and became a brand with cultural influence.