This paper assesses predictive effect of the mix frequency model, by using factor variables getting from the monophonic static factor model with a large number of monthly indicators, and then applies them into real-time forecast and short-term prediction of the real GDP growth rate in the early 12th Five-year Plan period. Results show that, the general economic situation will present stable growth pattern in the second half of 2011. In 2011, GDP growth rate will be in the interval of 9.5% to 10.5%, and the rate is stable at around 10% in the first quarter of 2012, slightly declined than the fourth quarter last year. <<