After a period of military service in Turin, in the early 1930s he started working on the "Mendicanti" series which he investigated again and again throughout his whole life production. Martini's mendicants are painted in a realistic manner, where their poverty is described through poverty of tools, and the figures are symbolically lengthened and bent to the earth. The sculptures of Quinto Martini were also inspired by the Etruscan style, which was deeply rooted in his area where there are important Etruscan archeological sites.