The theoretic genres of International Financial Centers' (IFCs) development mostly involve the Economics of Scale, Location Economics and Fluidity Theory of Finance Products. This paper studies the momentum aspect of IFCs development, in an attempt to figure out the elements driving IFCs development, which is important in formulating a policy accelerating such development.This paper uses a Wheel Model to explain the IFCs development momentum,which involves two pulling forces (technology and economic development), three thrusting forces (supply, history and city), and the effect of local government's public policies.