Abstract: Many factors affect international competitiveness of wood-based panel. In order to fully reflect the international competitiveness of the wood-based panel industry, and to avoid missing important information and prevent excessive number of evaluation indexes, considering the availability of data and on the basis of Porter theory and related researches, the paper builds a more reasonable comprehensive evaluation index system for the international competitiveness of wood-based panel industry while infinite irrelevance method is used to screen and exclude indexes. Then, by comprehensive analysis method, the paper compares and analyzes the international competitiveness of wood-based panel among major countries with large production and trade of wood-based panel in the world. Due to the inconsistency of results by comprehensive analysis method, 3 methods of statistical method, principal component analysis, and grey relational analysis are applied to decide objective weight in comprehensive analysis. Through the comparison of the international competitiveness of wood-based panel, its advantages and disadvantages are acquired, which provides plentiful experience and methods for improving the international competitiveness of wood-based panel industry in China.