A self-watering system includes a watering member, a pot support member, and a water container member. The watering member includes a support tube member and a water transfer member. The supporting member includes a head portion, a body portion, and a bottom portion. The head portion has a conical shape. The body portion has a hollow cylindrical shape, and includes a body groove formed in a longitudinal direction and at least one air hole formed in the body groove. The water transfer member serves to absorb water and transfer the water to soil and a root of a plant in a pot. The pot support member serves to support the pot, and includes a fixing hole. The water container member stores water to be absorbed by the water transfer member. The watering member is fixed to the pot support member such that the bottom portion is inserted into the fixing hole of the pot support member.