There are many unfavorable effects on the sustainable development of social economy because of the aging of population, such as a decline in the proportion of age for labor force in the population;a decrease in the labor resources;the aging of population of labor force;the rising of the coefficient of supporting the aged and the total supporting coefficient;an increase in the national expenditure on the aged;a decrease in the population of being able to save and total savings deposits; a decline in the family resources for providing the aged and the weakness of the function, but there is no diametrically opposed contradiction between the two.We can coordinate the growth of the aging of population and the development of the social economy, so long as we deepen the researches in senile science;strengthen the whole country's consciousness of aging of population;take some scientific countermeasures timely and make full use of the advantageous factors of the aging of population.