PROBLEM TO BE SOLVED: To provide a fitting structure of a backpack band enabling a user to get a feeling of unity with a work machine body adequately.SOLUTION: A fitting structure A, where a backpack band 12 is attached to a work machine body 10 of a backpack type work machine 1, includes a pair of right/left band parts 14, 14 having the upper end part 14a engaged with an upper part 2 of the work machine body 10 and the lower end part 14b engaged with the lower part 6 of the work machine body 10, the lower end parts 14b, 14b of the band parts 14, 14 are engaged with the lower part 6 of the work machine body 10 in a substantially parallel state in a vertical direction or in an inclined state having the upper the wider position and a mutual distance relation.SELECTED DRAWING: Figure 3
