Abstract： This paper introduces LUO Xiaorong's experience in treating constipation in children in Lingnan area. LUO Xiaorong believes that constipation in children is closely related to inability to constipate due to the lack of spleen qi， excessive heat consuming fluid and loss of intestinal moisture. LUO proposes that the common syndrome types of constipation in children are the syndrome of spleen deficiency failing to move and the syndrome of intestinal moisture loss. Its treatment is to transport the spleen and tonify qi and clear heat and moisten dryness，and use modified Sijunzi tang combined with Liumo tang and modified Zengte tang to treat. LUO also stresses that the treatment of constipation in children should use the attacking method with caution to avoid injury to the spleen and stomach，and should use neutral medicine to protect the healthy qi.