The invention discloses a weft-insertion-condition display method for a loom, and is aimed to provide a weft-insertion-condition display method for a loom such that the information regarding a changein a weaving condition is displayed on the same screen as a display screen on which the statistics are displayed. A loom includes a display device, and a weft arrival time is detected each time a weftinsertion operation is performed in the loom. The display device calculates statistics regarding the weft arrival times for each of predetermined sampling periods on the basis of the detected weft arrival times, stores the statistics that are sequentially calculated during a weaving operation in time series, and graphically displays the stored statistics in time series along a time axis. Information regarding a change in a weaving condition is displayed on the same screen as a display screen on which the statistics are displayed. The information regarding the change in the weaving condition includes an input history regarding a change in a setting of the weaving condition.