Mole cricket is a unique insect, it not only can dig and excavate under ground with its specialized forelimb, but also can achieve terrestrial locomotion. This study focused on the difference of kinematics between mole crickets and normal insects in terrestrial walking. In order to study the function of the specialized foreleg, the adjustments made to the foreleg amputation were discussed by analyzing the motion ability, gait, and body posture of the mole cricket with and without forelegs. The results show that mole crickets walk in terrestrial locomotion by using a special tripod gait, with the clumsy foreleg not as functional as normal hexapods. Mole cricket can make corresponding adjustments for the situation of missing forelegs, and achieve required motion stability with remained four legs. Mole cricket is a unique insect, it not only can dig and excavate under ground with its specialized forelimb, but also can achieve terrestrial locomotion. This study focused on the difference of kinematics between mole crickets and normal insects in terrestrial walking. In order to study the function of the specialized foreleg, the adjustments made to the foreleg amputation were discussed by analyzing the motion ability, gait, and body posture of the mole cricket with and without forelegs. The results show that mole crickets walk in the terrestrial locomotion by using a special tripod gait, with the clumsy foreleg not as functional as normal hexapods. Mole cricket can make corresponding adjustments for the situation of missing forelegs, and achieve required motion stability with remained four legs.