Objectives: The resource condition of low rand coalbed methane resources in Manas mining is superior. However, the degree of geological research and resource evaluation is extremely low, which restricted the exploration and development of coalbed methane in the area. The purpose of this study is to analyze the characteristics of the loworder coal reservoirs, and to discuss the reformability and effect of coal reservoirs Hydraulic fracturing, in order to provide theoretical and engineering reference for the exploration and development of coal bed methane in the area. Methods:By two coalbed methane (CBM) parameter wells drilling and Core sample testing, Comprehensive analyzed the reservoir parameters which influence the enrichment and development of CBM, 2# and 5# coal seams were optimized for reservoir reconstruction Meanwhile, the microseismic monitoring method was used to evaluate the fracturing effect. Results:The thickness and depth of coal seam in the Manas area is 1.9~9.5 m and 800~1500 m, Ro.max between 0.50% and 0.85%. gas content of air dried basis is 0.89~6.43 m3/t. The coal reservoir porosity is in the range of 8.8%~14.5% with the specific surface area is 0.624~9.585 m2/g. The pore has a large volume and good pore connectivity, with the permeability between 0.0012 mD to 1.9286 mD. Coal reservoir pressure rangs from 12.21 MPa to 15.18 MPa, break pressure rangs from 19.60 MPa to 23.76 MPa, which are beneficial to the enrichment and fracturing of coalbed methane. The reservoir reconstruction of 2# and 5# coal seam transformed fracture with a single wing length of 90.5~142.2 m,width of 39.8~48.0 m, volume of 22.74×10 4~27.37×10 4 m 3, and effectively improved coal reservoir connectivity and permeability.Conclusions: The Medium—thick coal seam groups are developed in Manas area, with a large total thickness, a raw structure and mainly a kind of long flame coal. The microscopic pores of the reservoir are developed, which are mainly tissue pores and dissolution pores. The pore has a large volume, good pore connectivity, and medium—low permeability.The 2# and 5# coal seams in the study area have a large buried depth, a high gas content, a high reservoir pressure and formation energy. However, during the fracturing, the injection pressure is high and the sand adding efficiency is low which reflect the difficulty of reservoir reconstruction. The microseismic monitoring results show that the artificial fractures produced by fracturing are mainly vertical fractures, showing SE—NW striking, and the length, width and volume of the fractures are all relatively large. When the flood discharge is released after fracturing, the discharge gas can be ignited, which shows a good gas production potential in the study area.