This thesis presents field measurements and work effects of mechanical harvesting with different varieties of hops. Measurements have been done on the hop plantation Rojnik and Jelen hop. Varieties that are cultivated the most are Savinjski Golding, Aurora and Celeia. Hop plantation Rojnik, from Savinjka Valley, is growing hops on the land surface of 41 hectares. While hop plantation Jelen, from Droise vasi, Pertovcah, stretches to 21 hectares. During the harvest they are using Landini REX 120 GT (75kW) tractor that can move to a speed of 4.5-5 km/h and harvest takes 6 minutes in one passing. Jelen hop plantation is using weaker tractors of 59 kW, Massey Ferguson 394 A, which with the speed of 3,3-3,6 km/h takes 10 minutes for harvesting in one passing. Based on the mechanization cost during one hour of work (tractor + trailer), on the hop plantation Jelen, and total revenue of the specified varieties, the best economy is shown. All three varieties that have been analysed, they have positive coefficient of economics and the highest cost- effectiveness has Aurora variety. In the research of a work effect of mentioned machines in both plantations, tractor Massey Ferguson 5458 has achieved the best one, with the trailer Tehnos on the hop plantation, specifically for the variety Savinjski Golding 3,83 ha h-1, with the effective usage of 29%. Hop plantation Rojnik because of the big distance between a plantation and family farm – hall for processing, it’s losing on its effectiveness which comes to 8,3% with work effect of 1,83 ha h-1. Even though for the harvest they are using the latest technology (tractor Landini Rex 120 GT with the towed trailer Wallner type L in combination with Wolf cutter).