After peace was made with Spain in 1795, Harispe was assigned garrison duty in Bordeaux, where he fought insurgents in the Haute-Garonne.

When the War of the Third Coalition broke out, Harispe served under Marshal Augereau in the Army of the Ocean Coast.

In December 1807, Harispe was made chief of staff of the Corps of Observation of the Ocean Coast under the orders of Marshal Moncey.

After Lannes returned to France on the outbreak of the War of the Fifth Coalition, Harispe became chief of staff to general Suchet.

After being wounded in the Battle of María, where Suchet with 10,000 men beat a larger Spanish force, Harispe was promoted to general of division.

In 1814, he was sent to Barcelona to serve as reinforcements to Soult, who after Vitoria was tasked with preventing the Duke of Wellington from invading southern France.

During the Bourbon Restoration, Harispe was made a knight of Saint Louis and given command of the 15th military division.

Upon Napoléon's return from Elba, Harispe rallied to the emperor during the Hundred Days and served on the Spanish border.