Toussaint gave full play to his military strategy and political talent in the Biyasu uprising army. In order to mobilize the masses, educate them and consciously guide them to participate in the revolutionary struggle, he held high the banner of "freedom", pointed out that "freedom is the most precious wealth in the world" and clearly put forward the slogan of "fighting for freedom". This slogan truly reflects the wishes of the vast number of black slaves. He told the officers and men of the rebels what it meant to practice freedom in Haiti and how to practice freedom in Haiti. He spoke in a simple way, easy to understand, and every sentence revealed the feelings of the slaves. Toussaint also suggested using guerrilla tactics against insurgents, and advocated using the characteristics of high mountains and steep cliffs and deep forests in Haiti to launch guerrilla warfare with the enemy. When the enemy attacks on a large scale, the insurgents should avoid their sharp edges, or disperse or transfer, and go back and forth with the enemy, and then attack and annihilate the enemy by surprise when the enemy is tired. Toussaint also taught the insurgents to make cotton shields to resist the enemy and reduce casualties. Toussaint's tactics were effective and widely promoted in the uprising army, which made the French army often in a passive position.

Toussaint's political and military talents were widely praised by the officers and men of the rebel army. With the support of Biyasu, Toussaint personally organized 600 uprising fighters for strict military training. This team is brave and good at fighting, can attack and defend, and will soon become a strong force in the uprising army. In the Battle of Morne Pellet in northern Haiti, he repeatedly hit the French army, made meritorious deeds and killed the French army. Lavo, commander of the French colonial army, said: "Toussaint can open the situation everywhere!" People therefore called him "Toussaint L'Ouverture". "Louvertur" means "open" or "open" in French.