液压支架是由架体（金属结构件）、工作机构（立柱千斤顶）、液压控制元件（阀类等）及附件（胶管、三通、弯头等）组成
   
                                                                                                                                    架体
                                                                                                                           （金属结构件）
  
                                                                                                                              工作机构 
                                                                                                                         （立柱千斤顶）
  
                                                                                                                           液压控制系统
                                                                                                                              （阀类）

                                                                                                                             各种附件
                                                                                                                        （胶管、接头类）
    主要金属结构件有：顶梁、掩护梁、底座、前后连杆、尾梁、推移机构等。
   液压控制系统除了立柱、各种千斤顶外，还包括各种液压控制元件（操纵阀组、安全，阀、液控单向阀等）和液压辅助元件（管接头件、胶管等）。
   支架各结构件之间及结构件与液压元件间均通过销轴、螺栓等连接，管路连接采用快速接头、U型卡等连接，方便拆装维护。