1. Ecological or Natural causes of migration:

• The causes operate under this category are natural ones. They include Valcanic eruption, mankind changed considerably.
• At this stage, people continued to move from one region to another in search of fertile land for cultivation.

2. Economic causes of migration:

• Economy is one of the most important causes of human migration from one area to another.
• The availability of fertile agricultural land, employment opportunities, development of technology etc. are some of the economic causes that attract the migration.

3. Socio – cultural causes of migration: 

• Socio – cultural causes also play some roles in the process of migration.
• For example, women after marriage.

4. Demographic causes of migration:

• In demographic sense, the population composition like age and sex, over population and under population are the major causes of migration.
• Over population is considered as a push factor and under population to be pull factor in the context of migration.

5. Political causes of migration:

• Various political causes like colonization, wars, Government policies etc. have always been playing important role in human migration from time to time.