Based on the researches of Lux and Marchesi (1999), the endowment of business dealers with three kinds of behavior idiosyncrasy makes business dealer behaviors in financial market relatively homogeneous and absolutely heterogeneous and further makes financial market have the interactive effect of reversion and intermittency, three kinds of signal waves with reversion and intermittency are used to conduct calculation test for the price fluctuations of Shanghai Stock Composite Index and Dow Jones Industrial Average Index, and the results show that the price volatility of Shanghai Stock Composite Index and Dow Jones Industrial Average Index are both affected by the interaction effects of reversion and intermittency, among which Shanghai Stock Market is affected more strongly, which means that the validity of Dow Jones Market is higher than that of Shanghai Stock Market. Thus, the complexity of price vibration of financial market not only results from reversion and intermittency in the market but also from the interaction effects of reversion and intermittency.