1. A monocrystal growing system as a system of controlling a growth interface shape by pulling up and growing a monocrystal ingot in a process chamber by a Czochralski method, the system comprising:an ingot weight measuring part for measuring a weight of a growing ingot;
an ingot diameter measuring part for measuring a diameter of the growing ingot;
an ingot height measuring part for measuring a height of the growing ingot;
a comparing part configured to compare a measurement value obtained by measuring a weight increase amount of the ingot for unit time and a theoretical value of the ingot weight increase amount derived through a change in the diameter and the height of the ingot for the unit time; and
a control part configured to predict a prediction result for a growth interface shape of the ingot to be grown according to a difference between the measurement value and the theoretical value derived from the comparing part and to change a process condition during monocrystal ingot growth according to the prediction result for the growth interface shape of the ingot.