In order to meet the engineering requirements of long haul time transfer over optical fibers, a time-delay measurement method based on the time digital conversion (TDC) and the field programmable gate array (FPGA) is proposed. This method combines the characteristics of a large measurement range for FPGA and a high resolution for TDC, and thus an optical fiber time-delay measurement with a high resolution in a wide range is realized. The research results show that the measurement range of this system is 0-1 s, the resolution is 22 ps, and the uncertainty degree is superior to 100 ps.