This study were using two scenarios used including: scenarios of flooding and salinity intrusion from CLUES (Climate Chane Affecting Land Uses in the Mekong Delta) project which has assessed the current situation and the impact on land use planning of Hau Giang province. Scenarios were developed for 2 periods: 2030, 2050 based on database of 1998 (less flood), 2000 (high flood) and 2004 (average flood) with the predictions of salinity intrusion, variable rainfall, and upstream development combing into 32 scenarios of different sea level rise. The results showed that the flooding effect of scenario as in 2000 is the most serious. It will affect to the Chau Thanh district, Chau Thanh Adistrict and Nga Bay town with a high flooding level at 1.5m. On the another hand, scenario of salt will affect largely to the Long My district with high salinity level >8 ? as in 1998 scenario. No locality has been affected by high salinity in high flood,With the impact that the script has influenced the current state of land use planning and efficiency of land use in 2020 was severe. If there is no timely response measures.

Keyword: Flooding, sea level rise, Land use Planning, Hau Giang Province