Abstract: The calculation of industrial components in coalbed has always been a key issue in coalbed evaluation. Taking 3# and 15# coalbed in Qinshui Basin as the research object, this paper studies the application effect of regression analysis method and constrained optimization algorithm in the calculation of industrial components combined with the coalbed test data. The application examples show that when the testing data of coalbed is sufficient, statistical modeling based on coalbed calibration logging technology can obtain a regression analysis model in accordance with regional laws with good results.When the test data is insufficient, the constrained optimization algorithm based on the volume model method is adopted, and the result is more reasonable.