Hand embroidery worker is one of the forms of informal sectors in Nagari Koto Gadang, Sumatera Barat which has not yet applied an ergonomic working facilities in its daily activity. There were 84% worker who complain of pain during work. The purpose of this experimental study with pretest-posttest with control group design was to analyze the influence of intervention of working facilities work posture to reduce musculoskeletal disorder in the hand embroidery workers in Nagari Koto Gadang, Sumatera Barat. The populations of this study was 36 embroidery workers and 26 of them were selected to be samples for this study. The technique of sampling was total sampling, where there were 10 respondents who do not meet the criteria of inclusion. The result of this research, before the working facility intervention, their work posture was on the high and medium levels. After working facility intervention, their work posture was improved to small level. The result of Wilcoxon test showed there were difference musculoskeletal disorder working (p= 0.01) in the experiment group before and after working facility intervention. The hand embroidery workers are suggested to use the working facilities which have been ergonomically design, to do some relaxation when they are working, it’s needed to make an adjustable work (pamedangan) and using a lumbar brace to minimize the musculoskeletal disorder.