China will attach more importance to developing medium-sized cities between 200,000 to 500,000 population, said Zhai Baohui, official with the Ministry of Construction's policy research center.

China will invest more in the infrastructure construction in the area where medium-sized cities are concentrated so as to attract more residents and businesses, the official said.

Zhai said the government plans to reconstruct some groups of medium cities, on one hand, remaining their unique cultural elements, while on the other, creating more jobs to alleviate pressure on the country's booming metropolises.

According to the latest statistics of the center, 62 percent of the world population live in medium-sized cities.

During the past 50 years the big cities have played an important part for world's economic development and trade liberalization, but increasing living costs in these centers makes it difficult for many residents to eke out a living in the big city, said Zhang.

Zhai said many people have chosen to move themselves from the hustle and bustle of the metropolis to the relatively peaceful and pleasant medium-sized cities, buffer areas between monotonous life and the fierce competition.