disclosed herein is a laminated core of a motor including : a first core sheet including a first rounded core base , a plurality of first teeth which are radially formed on the first core base , and first tooth ears formed at the end of each of the first teeth ; and a second core sheet including a second rounded core base , a plurality of second teeth which are radially formed on the second core base , and second tooth ears formed at the end of each of the second teeth , the second core sheet having the same shape as the first core sheet but being smaller than the first core sheet , wherein the second core sheet is located at the lowermost part , one or more the first core sheets are laminated on the second core sheet , and another second core sheet is located at the uppermost part .