The invention belongs to the technical field of operation robots, and discloses a minimally-invasive operation robot device. The minimally-invasive operation robot device comprises bent arms and a driving mechanism, the bent arms comprise the first bent arm and the second bent arm, the first bent arm is provided with a first elastic unit, and a first connecting part of a stationary clamp is arranged at the top of the first elastic unit and connected with a first push-pull rod; the second bent arm is provided with a second elastic unit, a second connecting part is arranged between the first elastic unit and the second elastic unit and connected with a second push-pull rod, and the first push-pull rod penetrates into the second connecting part and is connected with the first connecting part.According to the minimally-invasive operation robot device, the driving mechanism is connected with the first push-pull rod and the second push-pull rod separately to be used for driving the first push-pull rod and the second push-pull rod to perform pushing and pulling to control the first elastic unit and the second elastic unit to be bent, and therefore the large bending angle of the bending arms is realized.