A weaving method in a loom (1) that, with a drive mode being set with each loom cycle with respect to at least one weaving related device, weaves by driving the weaving related device in accordance with a setting content regarding the set drive mode. In weaving a cloth including weaving portions (A, B, C) formed using a plurality of unit woven patterns each having a weave structure, a weft constitution, or a weft density that differs from that of the other woven pattern or each of the other woven patterns, a plurality of woven-pattern weaving patterns and weaving step information are stored, the plurality of woven-pattern weaving patterns corresponding to the respective unit woven patterns and being independently set, the weaving step information including information regarding steps of weaving for one repeat of the weave structure formed using the woven-pattern weaving patterns and information regarding weaving lengths that are set so as to be associated with the corresponding steps, each woven-pattern weaving pattern is such that the drive mode of the weaving related device with each loom cycle is set for one repeat of the loom cycles for forming the corresponding unit woven pattern, in accordance with an order in which the steps are set in the weaving step information, the woven- pattern weaving patterns are read out, the weaving related device is driven, and weaving for the weaving lengths in accordance with the information is performed.