The invention discloses an ABS pattern dynamic regulation method in an LTE-A heterogeneous network based on user fairness. The method comprises the steps that 1, an ABS pattern ensemble corresponding to different ABS ratios is preset by a macro base station; 2, victim terminals are determined by pico base stations according to reception signal-to-interference-plus-noise ratios of mobile terminals within the range of the pico base stations; 3, an initial ABS ratio is calculated by the macro base station according to data fed back by the pico base stations; 4, K signal-to-interference-plus-noise ratio sample values of the victim terminals under a non-ABS and an ABS are respectively counted by the pico base stations to calculate average signal-to-interference-plus-noise ratios within K sample periods; 5, average throughput capacities of the mobile terminals under the non-ABS and the ABS are respectively calculated by the macro base station according to the counted average signal-to-interference-plus-noise ratios fed back by the pico base stations; 6, an ABS ratio is calculated and an ABS pattern is set by the macro base station according to the average throughput capacities. According to the ABS pattern dynamic regulation method in the heterogeneous network based on the user fairness, disturbance to the pico base stations caused by the macro base station is effectively reduced; at the same time of meeting user requirements to the maximum extent, overall performance of the system and the user fairness are improved.