Four factors that influence the poor trade stability in in?machine tool remanufacturing industry are proposed, which are the influence of support on transaction,?after-sales?on?transaction, characteristics of remanufactured machine tool and?recognition?on transaction, and the demand?of customer.?The relationship among?the poor trade stability and four factors are discussed. 156 enterprises are selected as survey objects, and the collected data are analyzed. The results show that: the largest?factors?on?poor trade stability?is the characteristics and?consumer’s recognition, followed by the?instability of demand,?then the?support from government , industry?and the original?machine tool factory,? the influence of ?after sale?service on the poor trading stability is weakest. The four factors and the total questionnaire have significant difference on the enterprises with different?characteristics.