With the rapid growth and enhanced aim of wind power, large scale development of wind power has become an inevitable trend. To guarantee the reliable and effective transmission of wind power, economic analysis is investigated based on the development conditions and transmission of wind power in our country. The selection of technical parameters and its impact on the economy are analyzed by the means of price competitiveness analysis for UHVDC transmission combined with wind and thermal power. It is shown that the wind power transmitted by UHVDC is economically feasible, and some related suggestions put forward.