The invention discloses a distribution line live-line operation ground training system. The system comprises a plurality of simulation line subsystems in parallel arrangement, boost stations respectively connected with the simulation line subsystems, and a monitoring control subsystem. The monitoring control system is installed around the simulation line subsystems for monitoring the simulation line subsystems and the boost stations. The simulation line subsystems comprise a plurality of electric poles vertically arranged on the ground and lead wires connected in series with the electric poles. The system provided by the invention can perform one-by-one simulation power delivery on voltages of each grade, carries out real-time monitoring remote measurement on lines, meets the training requirements and improves the skill level of training personnel.