Abstract: Agricultural areas of Beijing's suburbs bear the differenct development goals in different periods of industrialization and urbanization due to the urban-rural functional differences, and there are also some differences in its urban-rural integration process and spatial patterns. History evolution method and the corresponding mathematical analysis method are used in this paper to study the urban-rural integration. Results show that, the industrialization, and urbanization areas presented a spatial development pattern with radiation type→enclaves type, level transfer type→massive type+ fanlike type +radiation type in the Beijing main suburbs from inner suburban to exurban areas (23-57 km) since 1988; the combination and realization of economy, ecology and social functions varied during different periods, and its multi-function evaluation value changed between "W"-shaped and " M"-shaped pattern. General speaking, urban and rural functions and their comprehensive benefits of Beijing's suburbs are enhanced, economic function has relatively declined, its ecological and landscape functions have relatively risen, and social functions appears to be fluctuating but the overall trend tends to be strong. The urban-rural funtctional space planning will become more complicated. This development situation directly affects the realization of multi-level and multi-center urban-rural integration during the 12 Five-year Plan period (2011-2015).

Key words: agricultural areas of Beijing's suburbs, functional transformation, spatial pattern, urban-rural integration