Analysis Of Water Loss Efficiency Of Agricultural Harvest Reselts In Guakdale Irrigation Are Of Tuatuka Village, Kupang City, Province Of East Nusa Tenggara Yunus Fallo 1 , Ramzy GGL. Sayonara, Anie Adrianti Tuati {yunus_fallo@yahoo.co.id, sayonararamzy@gmail.com, adrianti.tuati@gmail.com} Kupang State Polytechnic, Penfui, Kupang, Indonesia Abstract. Agricultural development in Indonesia is still considered important from the overall development, especially to support the pace of the economy in general. Gaukdale Irrigation Area which has an area of 168.50 hectares of land located in the village of Tuatuka has the Gaukdale Irrigation Network that was built since the year 2000. The existence of damage from irrigation network infrastructure has resulted in water loss in the carrier channel, namely in the primary channel and secondary along with other completeness buildings, so that water entering the paddy field is not optimal. The percentage of damage to the BG-1 Primary Channels and BG-Ka Secondary Channels in the Guakdale Irrigation Network is = 8.39%. The influence of channel damage on Carrier Channels in the Guakdale Irrigation Network experienced water loss, namely in the Primary Channel of 1.12 m3 / sec and on the Secondary Channel of 0.69 m3 / sec. Keywords : Damage to the channel, Loss of water, Damage Repair, Increased Agricultural Results 1. Introduction In this time agricultural development in Indonesia is still considered important from the overall development, especially to support the pace of the economy in general [1]. This can be seen from the agricultural sector making a large contribution compared to other sectors on Indonesia's economic growth [2]. Water is a gift of God Almighty and one of the main elements for the survival of humans, animals and plants, besides there are other elements in supporting the continuity of human life [3]. The Province of East Nusa Tenggara (NTT), which consists of islands spread across several regions, is one of Indonesia's provinces that has a lot of land abandoned. In recent years the population has begun to cultivate abandoned land into productive land by being processed into agricultural land. The Government of East Nusa Tenggara with various efforts to improve agricultural output, in this case supporting facilities and infrastructure are needed to achieve these goals .. In line with the direction and request of the Governor of East Nusa Tenggara, when harvesting hybrid corn Nasa 29 varieties in Oesao delivered by the Head of the Department of Agriculture (Kadis) of NTT, the Governor asked the farmers to use abandoned land during the dry season. The question of water availability can be done with technological engineering (Pos Kupang, Wednesday, 17 October 2018) ICESC 2019, October 18-19, Indonesia Copyright © 2019 EAI DOI 10.4108/eai.18-10-2019.2290006