In the 1930s Ende's Surrealist paintings began to attract considerable critical attention, but were then condemned as degenerate by the Nazi government.
The majority of his paintings were destroyed by a bomb raid on Munich in 1944, making his surviving pre-war work extremely rare.
In 1951, Ende met the recognized founder of Surrealism, André Breton, who admired his work and declared him an official Surrealist.
Ende's paintings are thought to have had a significant influence on his son's writing.
This is inferred in the scenes depicting the surreal dream-paintings from Yor's Minroud in Die Unendliche Geschichte (The Neverending Story), and is made explicit in Michael Ende's book Der Spiegel im Spiegel (The mirror in the mirror), a collection of short stories based on (and printed alongside) Edgar Ende's surrealist works.