The study is aimed at discussion over the tool and performance of grape industry in Changhua County, Taiwan. In the preliminary investigation to the tool used, agricultural performers are used to apply dedicated grape scissor. In case there is no suitable tool for carrying out the performance, they are inclined to use other tools such as general scissors or blade for substitution, or even direct hand-pick. On the other hand, for performance, it can be divided into two categories as trimming and harvest work. Trimming is to remove the inferior grapes or prune them to clusters of shape and cut off the leaves; the other purpose of trimming is to enable sweetening and juicing of the fruits, nevertheless, it is necessary to notice not to harm the grape and sarcocarp. And the harvest work is to cut the stalk of grape and take the mature fruit while the other hand carefully holding it up in purpose of preventing it from dropping to loose and unstrung. For the sake, it is clear to see that the tool they are to use is almost from the beginning to the end as the two works said above are seasonal dense task that the post of arms and wrists acting for competition of these works likely incur Repetitive Motion Injury (RMI) and Carpal Tunnel Syndrome (CTS). After interview, investigation over the workers on site, most of them appear the foresaid two situations, and the pain areas are shoulder, arm and hand. In the case, the way the study is to explore the tool and performance survey pre-improvement and makes five different modeling of grape scissors (G1 similar to G5) by bettering angle of scissor opening and holding currently applied. There are two test missions to do, one is trimming task (T1) and the other is harvest task (T2) for testing grape cut performance and investigation of application while the test is undertaken by 30 people as subjects that are organized by new worker and experienced worker half and half. The outcome is found out that no matter new or experienced worker, they perform quite more excellent than the original one when they use the tool with shearing mouth bend G2 (30 degrees); In respect to tool familiarity, experienced worker performs greater as for he/she is influenced by habit of usage, but in terms of investigation over application condition, he/she expresses no better performance. In the use of new tool, new worker seems showing the higher acceptance degree and performance than experienced worker. Therefore, the study result can provide significant references to exploration of improvement, habit of usage, mental relationship and performance of tool, as well as give important information to industry as for continuous research and development of ergonomic tool in future.
