Concrete placing boom is a new product developed for enlarging the range of concrete pouring and improving the mechanization level of pumping construction. Being corollary equipment of concrete pump, it increases the range of concrete pumping by connecting with concrete pump; also, in effectively solving the hard problem of material distribution in wall pouring, it plays an important role in increasing construction efficiency and reducing labor intensity. This kind of concrete placing boom is reasonably designed, with stable and reliable structure, and the whole machine can be easily operated