The medium temperature heat collector pipe is composed of stainless steel pipe and glass pipe installed concentric with it. It is a tubular solar energy collector with glass-metal sealing in vacuum state. It is used for solar thermal power generation, medium temperature heating, agricultural and light complementary, seawater desalination, industrial heat and other fields. The product is can maintain high light transmittance; with high precision reliability tracking system, good thermal stability, product quality, highly modular, flexible installation, the product life up to 25 years.