This paper investigated the differences of Korean teachers’ eye movement while they were assessing the students’ writing samples by handwriting or word processor. The 13 Korean teachers were engaged, and divided randomly into Group 1(handwriting) and Group 2(word processor). Their eye movement were tracked during writing assessment by Tobii Eye Tracking System. The results were following those : (1) G1 had about 34.6% more visiting count, and longer re-fixation, and total fixation than that of G2. (2) In the writing sample area, G1 had more visiting count and longer fixation time than that of G2. (3) writing sample area had the highest share eye fixation because writing sample area is the core of writing assessment materials. (4) In the AOI level 2, G1 teachers more visited ‘content area’, and spent more time on ‘contents area’ than any other sub-areas of level 2. These results were interpreted to assess the handwriting samples for Korean teachers need more time and labor than to assess the word processor writing samples.