The activities connected with the milker’s work are directly related to maintaining a special body posture due to the tension of specific muscles. Staying in one required position for a long time and work monotony in case have a negative effect on the person’s musculoskeletal system. Therefore a study was conducted to evaluate the level of muscle tension and perceptible load while performing individual steps of hand-milking procedure. A detailed timing of the milker’s work was also recorded. The workload was assessed according to the OWAS method and muscle tension was assessed according to the EMG method. On the basis of collected data it was assumed that the highest muscle tension for the evaluated group of 10 milkers was achieved with the forearm muscles. It is strictly connected with hands being raised forward and repeating the same movements. Based on the OWAS method it was observed that the milker’s overall workload level can be described as medium. Farmers conducting milking should have adequate work breaks and should reduce workload on the musculoskeletal system whenever possible.