This research had the purpose to analyze the factor affecting on labour migration from the Northeastern of Thailand to Bangkok; to describe
about the characteristic of migrate labour, and to study the demand on social welfare. The random sampling of population of two provinces in the upper northeast, which are Roi et and Khon Kaen province, and the other two province from the lower northeast, which are Buri Ram and Srisaket province. Data collection of 682 migrated labours, age between 15 and 60 years old. Data analysis applies the logistic regression analysis method. The result found that factor affecting on labour migration from the Northeastern of Thailand to work in Bangkok are age of labour, unemployment occurrence before migration, the difficulty of looking for the job in local area before migration, distance between original province and destination province. Factor affecting on labour migration from Khon Kaen province to work in Bangkok are the difficulty of looking for the job in local area before migration, the share of working family member to total member, gender and share of income between destination and original province. Factor affecting on labour migration from Srisaket province to work in Bangkok are gender, age, unemployment occurrence before migration, share of income between destination and original province, and the owner of the house in

hometown. Factor affecting on labour migration from Roi et province to work in Bangkok are share of income between destination and original province, the difficulty of looking for the job in local area before migration, and the owner of the house in hometown. Factor affecting on labour migration from Burri Ram province to work in Bangkok are number of year study, single married status, the share of working family member to total member, and share of income between destination and original province.

Key word : Migration, labour, poverty