The domestic and international background for cultivating forestry carbon sequestration market in Yunnan Province was introduced,the important significance to cultivate forestry carbon sequestration market in Yunnan Province was analyzed,and the institution conception for nurturing the forestry carbon sequestration market in Yunnan Province was thereafter proposed in the paper.

The service market of CPA in China should be in correspondence with the information demand and vary theirservice.

This text analyzes primarily the scale,business model and developing foreground of the search engine service market that aims our country at the front.

Compared with the tangible product, the charecteristics of consumer behavior in service market is more distinctive.

In market service,the service providers subjective aims and motitity are individual goal and individual interests.

In this paper,on the basis of understanding the forest carbon-sink service,it was confirmed that the corresponding market-oriented mechanism should be established.

In this issue,on the basis of summarizing and analyzing the causes and aftereffects of the global climate change,as well as the economics characteristics of forest carbon-sink service,the relation between global climate change and forest carbon-sink service is renewedly understood.

Accordingly, how to collocate efficiently forest carbon-sink service and help to abate global climate warming have become the focuses of forest managem.

Based on the theory of Welfare Economics and market structure theory this paper analysis the concept of carbon tax and externality of the consumers and producers in the forests carbon sink market, belive that the impact of the market is correcting externality, prove that the forests carbon sink market is oligopsony at presant.