This paper aimed to clarify the private landscape architectural technicians in Taiwan, in the Japanese colonial period. This paper researched the number, the names and the business contents of them. The results of document analysis led to this paper new findings: (1) There were 66 landscape architectural technicians. The number of them is around 40% of the whole horticulturists in Taiwan. (2) The 66 landscape architectural technicians included 49 Japanese (it includes estimated people as Japanese.) and 17 Taiwanese. The number of Japanese exceeds 70% of the whole landscape architectural technicians. (3) There were 32 technicians who worked as gardeners. The 32 technicians included 31 Japanese (it includes estimated people as Japanese.) and Taiwanese was only 1 person. The result shows that it has a lot of possibilities that many Japanese gardens in Taiwan were constructed by such Japanese technicians. (4) There were 57 technicians who grew landscape architectural trees. The 57 technicians include 40 Japanese (it includes estimated people as Japanese.). The number of them is around 70% of the whole. (5) Some landscape architectural technicians in Japan exported landscape architectural trees to Taiwan. The export of such plants to Taiwan from Japan is one of important points to consider landscape architectural spaces in the period, Taiwan.
