A portable fan include: a handheld portion; a housing, connected to the handheld portion; a display screen, arranged on the fan housing or the handheld portion and configured to display a currently airflow speed level and an adjustable airflow speed interval formed by the adjustable airflow speed interval; and an airflow speed regulator, configured to receive a control instruction that is in a continuous state or has a changing trend and configured to perform, through the control instruction, a continuous adjustment or an adjustment in a skip-level manner on the current airflow speed level within the adjustable airflow speed interval. For the continuous adjustment, an adjustment magnitude in which the current airflow speed level is adjusted is one level; and for the adjustment in the skip-level manner, the adjustment magnitude in which the current airflow speed level is adjusted is greater than or equal to two levels.