Eisler created a large number of musical works and wrote a large number of books throughout his life, and was one of the most prolific musicians in the 20th century. There are more than 600 songs, including "Rising from the Ruins" (Auferstandenaus Ruinen, the national anthem of the German Democratic Republic, composed by Hans Eisler and lyrics by the poet Johannes Becher who later became the Minister of Education), " "Blue Flag Song", "Industrial International", "Worker Mother's Cradle Song", etc.

There are many orchestral choral works, the famous ones include: "Against the War", "Lenin Memorial Song", and "Children's Song".

Two operas "Goliath" and "Johann Faust" (not all completed), and the operetta "The Roundhead and the Pointyhead".

The instrumental music includes 8 orchestral suites, 2 symphonies and various small instrumental music.

In addition, there are more than 40 pieces of film music and more than 30 pieces of drama music (mainly in collaboration with Brecht, such as "Mother", "Galileo", etc.). He has published works and numerous papers such as "The Crisis of Bourgeois Music Culture", "The Road to the Development of Socialist Music" and "Music and Politics".

In 1968, the German Democratic Republic published a three-volume collection of Eisler's works, including one volume each of vocal music, instrumental music and text.