He worked mainly in wood and created numerous animal sculptures as well as nudes, beginning as a wood sculptor. He was also engaged in religious art. By participating in the exhibitions of the Federal Hagen in 1905 he found his own style and worked in the shallow section. Around 1910 he developed an interest in depictions of animals, for which he carried out studies at the zoo. He also devoted himself to the art of the Secession and started training with other materials, especially bronze. Beside nudes, he also created portrayals of farmers.
The identity of the art Olympian is still not definitively proven, since it could also be his son Franz Barwig the Younger (12 June 1903-13 December 1985), who was also a sculptor as well.