PVC piping with its light weight, corrosion resistance, high strength, safe and convenient features have received highly appraise by the engineering sector. In recent years, driven by the rapid development of domestic economy, China's PVC piping developed is very rapidly. 2010, the national output reached 8.42 million tons of plastic pipe, an year-on-year increase of 31.1%, ranking first in the world.Currently on the market there are some common plastic pipes as PE, PPR, PVC three categories. By PVC complete industrial chain and supporting by domestic raw materials, PVC pipe production in 2010 accounted for 55%. But as early as 2003, PVC pipes share up to 70%. In recent years, affected by various factors, PVC pipes’ market share is declining.According to the analysis, PVC pipe market share declined reason for three aspects : First, by PE, PPR and other plastic pipe impact, which were preempted a certain market share; Second lead stabilizers in contact with food products PVC pipe The disabling of the PVC piping has played a negative impact; Third, PVC piping in high-speed development period, industry capacity expansion, many small and medium enterprises to seize the market, reduce costs, a lot of padding in the formulation of calcium carbonate, affecting the image of the entire PVC piping industry, PVC accelerated the loss of market share.But overall, despite the reduced share of PVC pipes, plastic pipes market still occupies a dominant position. Good prospects for plastic pipe industry is still driven by the development of PVC industry is a major highlight."Twelve Five" period, plastic pipe production growth rate remains at about 10%, to 2015, the national production of plastic pipe will close to 12 million tons, plastic pipes in various national pipeline will be more than 60% market share .On the whole, the next few years, PVC pipe construction market demand will still be driven by construction demand, especially in the construction of affordable housing wave is approaching completion. But companies need to adjust the product structure combined with the actual situation of environmental protection and quality as the core focus on developing products to meet market demand for building materials, so as to stabilize the current dominance of plastic pipe.