본 연구는 여러 지명 자료를 통해 동래군 사천면 면지명 변천을 확인하는 것이 목적이었다. 연구의 결과는 다음과 같다. 첫째, 사천면의 면 분할은 1740년 『동래부지』의 상단과 하단에서 시작되는데, 면명으로 나타난 것은 1748 「해동지도」의 상단면과 하단면이다. 공식적으로 사천면이 사상면과 사하면으로 분할된 것은 1832년 『동래부읍지』에서이다. 둘째, 양산군 좌이전면이 동래부에 이관된 것은 1871년 『동래부읍지(사례대개)』의 계서면(桂西面)에서 확인된다. 이후 1906년에 양산군 좌면이 동래군 좌면으로 바뀌었고 1910년에 좌면이 좌이면으로 변화했으며, 1924년에 좌이면이 구포면으로 변화하였다. 1937년 『조선구역일람』에서 구포면이 구포읍으로 나타나며, 공식적으로 1943년에 구포면이 구포읍으로 변화하였다. 셋째, 구포는 1895년 『동래부사례』에서 사상면 감동리(甘同里)로 처음 나타나고 1904년 사상면 구포동(九浦洞), 1910년에 좌이면 구포동(龜浦洞)으로 나타난다. 이후 1924년 구포면 구포리로 나타나며, 1937년 구포읍 구포리, 1939년 구포면 구포동이었다가 1943년에 구포읍 구포리로 바뀌었다.
A Study on the Change of Administrative Names in Sacheonmyeon, Dongnae-gun. The purpose of this study was to confirm the division of myeon and the change of administrative place names in the Sacheonmyeon area of Dongnae-bu through various place name data. The target period of the study is from the Korean Empire to the Japanese colonial period. The results of the study are as follows. First, the division of Sacheon-myeon began in 1740 with the division of the sangdan and hadan of 『Dongnaebuj』. In 1748 「Haedongjido」, the division of the myeon into the Sangdan-myeon and Hadan-myeon appears as a place name. It was in 『Dongnaebuupji』 in 1832 that Sacheon-myeon was officially divided into Sasang-myeon and Saha-myeon. Second, it is confirmed in 『Dongnaebuupji (saryaedaegae)』 in 1871 that Jwaijeon-myeon, Yangsan-gun was transferred to Gyeseo-myeon, Dongnae-bu. Since then, Gyeseo-myeon has not appeared, and it is confirmed that Jwa-myeon of Yangsan-gun has moved to Jwa-myeon of Dongnae-gun in the Imperial Ordinances 47 and 50 of 1906. Since then, in 1910, the left side has been changed to the left side in the 「Dongnae-bu gakmyeon Report」, and in 1924, it is confirmed that the left side has changed to Gupo-myeon in the 『Jibanghaengjeongkujeokmyeongchingillam』. In 1937, it was confirmed that Gupo-myeon appeared as Gupo-eup in the 『Chosun District List』, and it was officially confirmed that Gupo-myeon changed to Gupo-eup in 1943 from Ordinance No. 297 of the Governor-General of Chosun. Third, Gupo first appeared as Gamdong-ri, Sasang-myeon in 1895"s 『Dongnaebusaryae』. Later, it appears as Gupo-dong, Sasang-myeon in 『Gyeongsangnam-do Dongnae-gun Gahoan』 in 1904, and reappears as Gupo-dong, Jwai-myeon in the 「Dongnae-bu gakmyeon Report」 in 1910. After that, it belonged to Jwai-myeon, but in 1924, the administrative district changed from 『Jibanghaengjeongkujeokmyeongchingillam』 to Gupo-ri, Gupo-myeon. It is confirmed that it appeared as Gupo-ri, Gupo-eup in 1937 in the 『ChosunkuyeokIllam』, and then again as Gupo-dong, Gupo-myeon in 1939 in 『Gyonamji』, and officially changed to Gupo-ri, Gupo-eup in 1943.