This paper firstly uses Taiwan's monthly pork exports during Februrary 1990 and July 1993 to estimate underlining co-integration model. It is found that the existence of difference-stationary process on monthly pork exports is highly possible. Assumptions of moving average and integrated time-series processes are further abopted for the dynamic modelling of Taiwan's pork exports. The estimation and analysis focus on the contents and effects of price and non-price competitiveness on Taiwan's chilled and frozen pork exports to Japan. The estimation results show that there exists special characteristics of short and long-run chilled pork export competitiveness for Taiwan. The chilled pork exports contain secular stochastic trending movement. However, the non-price competitiveness of Taiwan's chilled pork exports shows significant insufficiency. Frozen pork exports have long-run as well as both price and non-price competitveness and possess non-price secular stochastic trending competitive pattern. The estimated results further show significant short-run non-price competitiveness for the exports of frozen pork. Moreover, the non-price competitiveness of both chilled and frozen pork exports may be formed by non-economic factors. The market power represented by profitability variable is not able to explain the non-price competitiveness. Finally, several firm competitive measures and policy measures are suggested.