Different distribution of temperature field affects movement and distribution of particles in a centrifugal acceleration field. To accurately describe the distribution of particles, it is necessary to simulate the temperature field in the centrifugal acceleration field under current experiment conditions. In this paper, the solidification process of self-hardening sand centrifugal casting is simulated in the 2-D cylindrical coordinate by adopting the finite difference method and using MathCad 7.0 for the first time. The influences of rotational speed, pouring temperatures, mould temperatures and mould types on temperature distribution are studied. Numerical analysis shows that solidification process of casting with self-hardening sand and iron cover is not similar to the directional solidification from outer to inner: the upper and lower surfaces of casting firstly solidify, and then solidification front moves to the middle. This study also indicates that solidification speed of casting increases with an increase in rotational speed and thermal diffusivity of casting mould, or increases with a decrease in mould temperature and pouring temperature. The influence of mould temperature on the temperature field is the largest, the influence of rotational speed is the second, and that of pouring temperature the least.