A stator structure includes a bearing cup disposed on a base seat, a bearing, a silicon steel sheet assembly and a press member. The bearing cup has a receiving space in which the bearing is received. One end of the bearing is formed with an extension section outward extending from the bearing. The silicon steel sheet assembly is fitted around the bearing cup and has an upper end face and a lower end face. The press member is correspondingly assembled and disposed on a top end of the bearing cup. The press member has a first press section and a second press section protruding from one face of the press member. The first press section correspondingly presses the extension section of the bearing. The second press section correspondingly presses the upper end face of the silicon steel sheet assembly.