Born in the coastal town of Sakaiminato, Mizuki was originally named Shigeru Mura (武良 茂Mura Shigeru), the second of three sons. Described as a drifting, curious child, his earliest pursuits included copious amounts of drawing and hearing ghost stories from a local woman he nicknamed "Nononba".
However, in 1942, he was drafted into the Imperial Japanese Army and sent to New Britain Island in Papua New Guinea. His wartime experiences affected him greatly, as he contracted malaria, watched friends die from battle wounds and disease, and dealt with other horrors of war. Finally, in an Allied air raid, he was caught in an explosion and lost his left arm. As a southpaw, after the war he taught himself to write and draw with his right hand. While a prisoner of war on Rabaul, he was befriended by the local Tolai tribespeople, who offered him land, a home, and citizenship via marriage to one of the local women. Mizuki acknowledged he considered remaining behind, but was shamed by a military doctor into returning home to Japan first to face his parents, which he did reluctantly.
Upon arriving home, Mizuki had initially planned to return to New Guinea; however, the Occupation of Japan changed that. His injuries and loss of his writing arm did little to help, nor did the fact that his older brother, an artillery officer, was convicted as a war criminal for having prisoners of war executed. From his return until 1956 he worked as a movie theater operator until his break as a cartoonist.
In 1967, Mizuki released his debut work, Rocketman. Since then, he has published numerous works, both on yōkai and military works. He has also written many books on both subjects, including an autobiography about his time on New Britain Island and a manga biography on Adolf Hitler. In 1991, he released a short work titled War and Japan published in The Sixth Grader, a popular edutainment magazine for young people, detailing the atrocities committed by the Japanese Army during their rampage in China and Korea and is narrated by Nezumi Otoko. The work serves as a powerful counterpoint to revisionist manga like the works of Yoshinori Kobayashi and by extension a way for Mizuki to express his anger at those responsible for all of Japan's victims. When not working in either field, he paints a number of subjects, though these works are not as well-known as his literary ones which have made him a household name.
In 2003, he returned to Rabaul to rekindle his friendship with the natives, who had named a road after him in his honor.
In 2005, Shigeru Mizuki appeared in a cameo role in Yōkai Daisenso ("The Great Yokai War") directed by Takashi Miike, a film about yōkai inspired by his work; several of his characters make cameo appearances. A brief explanation about his works also is mentioned in the film.
On November 30, 2015, Mizuki died of heart faliure, he was 93.
Sakaiminato, the birthplace of Mizuki, has a street dedicated to the ghosts and monsters that appear in his stories. One hundred bronze statues of the story's characters line both sides of the road. There is also a museum.
Mizuki has won numerous awards and accolades for his works, especially Ge Ge Ge no Kitaro. Among these are:
- 1990 Received Kodansha Manga Award for Komikku Shōwa-Shi.
- 1991 Received Shiju Hōshō Decoration.
- 1995 For the 6th Annual Tokyo Peace Day, he was awarded with an exhibition of his paintings, entitled "Prayer for Peace: Shigeru Mizuki War Experience Painting Exhibition"
- 1996 Received Minister of Education Award.
- 1996 His hometown of Sakaiminato honored him with the Shigeru Mizuki Road, a street decorated with bronze statues of his Ge Ge Ge no Kitarocharacters and other designs relating to his works.
- 2003 Received Kyokujitsu Shō Decoration.
- 2003 Sakaiminato honored him again with the Shigeru Mizuki International Cultural Center.
- 2003 Tezuka Osamu Cultural Prize Special Award for his works.
- 2007 Received the Best Album award for NonNonBā at the Angoulême International Comics Festival.
- 2010 Received the Person of Cultural Merit award.
- Hakaba Kitaro (later republished as Ge Ge Ge no Kitaro after the anime)
- Hitler: A Biography
- Kappa no Sanpei
- Mizuki, Shigeru. "Mizuki Shigeru no Nihon Yōkai Meguri 水木茂るしげるの日本妖怪めぐり trans. Shigeru Mizuki's Ghosts and Demons.
- Rabauru Senki (Memories of Rabaul)
- Mizuki, Shigeru. "Graphic World of Japanese Phantoms". 講談社, 1985. ISBN 978-4-06-202381-8 (4-06-202381-4)