A control method of a laundry treatment apparatus is disclosed. The control method includes supplying electric power to a first load unit to execute a first cycle set in a first treatment device (a first step), supplying electric power to a second load unit to execute a second cycle set in a second treatment device (a second step), when an amount of current per unit time that is supplied to the laundry treatment apparatus is equal to or greater than a predetermined reference current amount, terminating the second step and executing a third cycle set in the second treatment device so as to consume a lower amount of current than an amount of current per unit time necessary to execute the second cycle (a third step), terminating the first cycle of the first treatment device (a fourth step), and executing the second cycle of the second treatment device after completing the fourth step (a fifth step).