Abstract: According to the asymmetric structure,skewed loading, and high failure rate of traditonal roofbolter for underground coal mine roadways in china, one aligned loading roofbolter with rensonable structure,excellent serviceability and high reliability had been designed and developed. The mechanical structure,functions and the features of the roofbolter were introduced, meanwhile, the characteristic on its general arrangement,chain transmission mechanism,oriented means and lubricating method was alse discussed. The practices showed that aligned loading roofbolter had been improved the rock bolting efficiency to achieve the coal mine production requirement.