Abstract: The teaching of rigid body fixed-point rotation is one of the difficulties in the teaching of Theory Mechanics.This paper introduces the design and use of 3DSMAX3 series of fixed-point rotation animations, including the notion of fixed point rotation-the fixed point rotation of inverted cone and the fixed point rotation of gyroscope, the decomposition of fixed point rotation-pure rotation, pure precession and pure nutation, the synthesis of fixed point rotation , polhode polar and herpolhode polar, as well as the use method of animation in the teaching process.The introduction of computer-aided teaching with the fixed point ratation made into animation, the teaching process is thus visual and teaching effect is improved.