Studying coastal landscapes is an important and meaningful content in determining the natural and human properties of the territory and territorial sea, which is a valuable scientific basis for spatial planning in the economic development associated with the use of resources and environmental protection. | VNU Journal of Science Earth and Environmental Sciences Vol. 36 No. 4 2020 52-66 Original Article The Classification System and Characteristics of Coastal Landscapes in Quang Ngai Province Dang Thi Ngoc1 Nguyen Cao Huan1 Nguyen Dang Hoi2 Tran Van Truong1 Ngo Trung Dung2 1 VNU University of Science 334 Nguyen Trai Hanoi Vietnam 2 Institute of Tropical Ecology Vietnam-Russian Tropical Centre 63 Nguyen Van Huyen Hanoi Vietnam Received 20 March 2020 Revised 06 September 2020 Accepted 17 September 2020 Abstract Studying coastal landscapes is an important and meaningful content in determining the natural and human properties of the territory and territorial sea which is a valuable scientific basis for spatial planning in the economic development associated with the use of resources and environmental protection. The Quang Ngai s coastal area is determined according to the continental boundary of 6 maritime districts cities and the boundary on the sea of the provincial coastal fishing zone. Coastal landscapes include terrestrial landscapes marine landscapes and island landscapes formed by the result of the interaction of natural components and human factors. The landscape structure of the coastal areas in Quang Ngai includes 1 system 2 sub-systems 3 classes 6 sub- classes 10 types and 108 kinds of landscapes In which there are 75 kinds of terrestrial landscape 27 kinds of marine landscape and 6 kinds of the island landscape. The landscapes of the study area have differentiation from west to east from the low mountain landscapes hill - plain landscapes to marine landscapes and island landscapes and from north to south which is clearly represented in the differentiation of plain landscape kinds. The landscapes are highly variable sensitive to external impacts including development activities. Keywords Coastal landscape landscape differentiation Quang Ngai. ____ Corresponding author. E-mail address dangngoc2406@ https 2588-1094 52 .