Designed by Antonio Parano and Giuseppe Panzeri, it saw limited service in two units from 1936, together with the contemporary Caproni A.P.1.

The first prototype flew in 1934 but flight tests revealed a lacklustre performance despite the use of a variable-pitch, three-blade propeller.

Nonetheless, a limited production order was placed for a composite variant that combined the two-place configuration of the bomber (although a small number of single-seaters were built in the initial series) with the semi-retractable fighter landing gear.

The faults including being underpowered, heavy handling characteristics and a tendency to enter high-speed stalls that led to a number of fatal crashes.

Two Ba.64s were exported by the Soviet Union in 1938 while a single example saw brief service in June 1937 during the Spanish Civil War with Nationalist forces in the Aviazione Legionaria.