The invention discloses a special inhibiter for the anticorrosion of gas pipes, and the inhibiter comprises the following chemical organic compounds by weight percent: 5-15% of morpholine, 10-20% of diethanol amine, 50-60% of heterocyclic organic amine and 5-20% of ethanol. The sum of the weight percent of the chemical organic compounds is 100%. All the components of the special inhibiter for theanticorrosion of gas pipes are organic components, the inhibiter has stable chemical properties, and the operation method on site is to use a metering pump to continuously fill. The special inhibiterfor the anticorrosion of gas pipes has good inhibition to the pipe corrosion caused by coal gas compositions.