Doraemon as a manga series first appeared in 1969, and the 1973 adaptation is one of the earliest attempts to bring the manga to television. This adaptation was produced by Shin-Ei Animation and was the first-ever anime version of Doraemon. The 1973 adaptation featured a more simplistic and minimalistic art style compared to later adaptations. Characters had less intricate designs, with fewer details and simplified features. Doraemon, Nobita, and the other characters had a more straightforward and somewhat "cartoony" appearance.

When the first Doraemon anime series aired in 1979, the characters received a more refined and detailed look compared to the original manga. This adaptation was produced by Shin-Ei Animation. This adaptation introduced a colorful and vibrant art style. The vibrant and eye-catching colors that contributed to the overall cheerful and inviting atmosphere of the show. The colors were used to emphasize the playful and imaginative aspects of the series. 

The 2005 Adaptation is the one of the recent art styles of the series. Produced by Shin-Ei Animation and Asatsu-DK it began airing on TV Asahi, This adaptation is also aired in over 50 countries as such it was also dubbed in many languages. The 2005 series made a deliberate effort to replicate the character designs and art style of the original manga by Fujiko F. Fujio. Characters, gadgets, and settings closely resembled their manga counterparts. The art style also featured bright and clear animation, allowing for detailed character expressions and well-defined backgrounds. This gave the series a modern and polished look. The animation quality in the adaptation was also notably more smoother than previous versions, offering an improved viewing experience. The 2005 adaptation featured a broader and more vibrant color palette compared to earlier adaptations. It also paid careful attention to background details.

The 2017 adaptation is a refined evolution of the 2005 art style, building upon its foundation. This reimagined version introduced a richer, more vivid color palette, while also enhancing the attention to intricate details. The result was a modernized and revised take on the 2005 art style, giving new life into the characters and overall visual aesthetics.