This article deals with the life and activities of Park Sang-ha, a nationalist who moved to Hawaii in the first half of the 20th century. First, the origin and growth of Park Sang-ha and his migration and settlement of Hawaii were reviewed. Next, I reviewed the establishment of his Jeonheung Association(電 興協會) and the organization process to the Korean Hap-Sung-Hyup-Hoe and the Korean People's National Association(Dae-Han-In-Gook-Min-Hoe), and then looked at his activities within the Hawaii Regional Assembly of it. Finally, the activities of Park Sang-ha's Korean integration movement and the Korean-Chinese Association Committee were studied. To conduct this study, newspapers published in the America and Korea, documents and data collections of Koreans in the America, and Japanese information documents were used. As a result of the study, the following facts were identified. First, Park Sang-ha was a man from Yangban who lived near Gyeongbokgung Palace in Seoul and was dispatched to Hawaii as a postmaster of the Korean Empire. Second, he organized the Jeonheung Association and the Korean People's National Association in Hawaii and acted as a imperial force. Especially in the early 1910s, he who was the chairman of the Hawaii Regional General Assembly of the Korean People's National Association invited Park Yong-man to establish the Korean National Corps and Military Academy. He supported the imperial power's armed struggle line, but he also took into account Syngman Rhee's ability training line. Third, he criticized Syngman Rhee who was the president of the integrative Provisional Government of the Republic of Korea in Shanghai made as a result of the integration of the Provisional Government of the Republic of Korea in Shanghai and the National Assembly of the Republic of Korea in Primorsky Krai. So he did not actively support the Provisional Government of the Republic of Korea from 1920 to 1927. Fourth, after the last half of 1920s, he tried to achieve the integration of Korean Americans and establish a unified nation-state after liberation. This article can help in the development of research on the history of national movements. First, it will contribute to researching the independence movement of imperial forces at home and abroad in the 1900s and 1910s. Next, it will help to understand the position taken by the Korean national activists from Yangban to the Provisional Government and political forces of Korea in China.