The induction generator（IG）short-circuit current calculation is an important foundation for planning and protection of distribution grid with distributed generation.According to the fault response characteristics of IG in distributed network，the current source model based on symmetrical components of IG is developed for short-circuit current calculation.Then the fault voltage and current responses of IGs under different short-circuit ratios（SCRs）are compared to investigate the coupled relationship between IGs and distribution network.By using the superposition principle of power system fault analysis，the interaction between IGs and the sequence networks is analyzed and the formula of short-circuit current sequence components at the fault bus considering its negative sequence voltage is derived.Finally，an iterative algorithm for calculating the sequence components of fault current for multiple IGs to integrate with the distribution network is proposed.The correctness of the proposed method is verified by the fifth electromagnetic transient model of IG in PSCAD/EMTDC simulation software.