In the book Animated Man: The Life of Walter Disney published by University of California Press in 2008, page 56 records that Walter was inspired by Mickey Mouse in his dream.

Another book, Walter Disney: Dialogue (a series of dialogues with comic artists), records that this inspiration comes from a mouse who works in the Laugh-O-Gram studio and often moves around the table.

According to Walter Disney himself, Mickey's image comes from praising Chaplin. The real origin of Mickey Mouse is the result of close cooperation between Walter and Wu Pei: Wu Pei describes his specific movements and forms, while Walter sets them to make the characters three-dimensional.

Extended data:

Mickey Mouse is always whistling, humming, skipping and full of energy. Although it is an adult's character, it retains the child's curiosity, happiness, a little naughty, not always very disciplined, not very polite, occasionally a little playful, a little lazy, impatient, impulsive, forgetful and quite irritable;

Even a little arrogant, sometimes hurtful, but later regretted and wanted to make up for it. He has a great sense of justice, likes to fight injustice, often overreaches himself and gets into trouble, but he always succeeds in getting rid of trouble and solving problems satisfactorily with wisdom.

Baidu encyclopedia-Mickey