The article adopts Panel Data Model to carry out substantial evidence test regarding poverty traps in cities through the equally divided 5 parts of data of urban households income from 29 provinces(or municipal cities) in China.

Based on a criticism of the "theory of the unique importance of capital" by development economics school,this paper puts forward that only by institutional innovation can developing countries stride across poverty trap and that political entrepreneurs with altruism are the motivating force of institutional innovation.

This paper constructs a human capital economic growth model to indicate the important role that human capital plays in economic growth and gives a poverty trap hypothesis of economic growth resulting from human capital deficiency.

Because of this,some bad consequences will appear,that is justice deficiency,poor trap,rewarding the lazy and punishing the diligent.

Promotion of bamboo for poverty alleviation and economic development;

Strengthen and improve the monitoring and evaluation of poverty alleviation program——Based on Thailand village fund;

Development Studies of Microcredit Poverty Alleviation Model in Western Region;