The infrastructure construction possesses the important position in the west dev elopment, and it is great to strengthen the cooperation of infrastructure const ruction Based on the situation of southern district infrastructure constructi on, and Chongqing's premise position in southwest district, this article has discussed Chongqing's strategy direction in the infrastructure construction, a nd stressed Chongqing as the opportunity center in the upper reaches of Changjia ng River must take the infrastructure construction as the opportunity, and lead th e so uthwestern district to speeding up the step of internal and external opening, in order to make Chongqing have the important effect on the southwestern developme nt