Abstract On the basis of contractual reference point effect, construction contract can be taken as reference point to identify and determine fairness concerns which can induce contractor’s fairness perception. Through a two-stage content analysis, this study encoded clauses of typical metro construction contracts, and identified seven fairness concerns which influence contractor’s fairness perception. It shows that clauses of risk responsibility, risk compensation and risk return can cause contractors’ distributive fairness perception. Clauses of participation in decision-making and rights restriction can influence contractors’ procedural fairness perception. Clauses of two-way communication and coordination can influence contractors’ interactional fairness perception.