Abstract: In order to obtain three-dimensional fracture system characteristics of tectonically deformed coals, based on the status quo that tectonic coal is widely developed in Huaibei Area, combined with CT scanning test analysis experiments, using image processing software ImageJ and the basic theory methods of coalfield geology, structural geology, we contrast and analyze three dimensional fracture system from 9 pieces of tectonically deformed coals samples in Huaibei Region. According to the morphology of three dimensional fracture, it is divided into flat-bending type of single fracture, parallel planes shape 1, parallel planes shape 2, parallel planes shape 3 of simple parallel combination, parallel planes shape 4 of parallel medium combination, palm shape 1, palm shape 2 of check simple combination, grid type, irregular type, tree types of network medium combination, star porphyritic shape, honeycomb shape of complex combination, finally it concluded three-dimensional fracture morphology of different types of tectonic coal.