Objective To explore the curative effect of two different internal fixation methods, cannulated compression screw (CCS) and femoral neck system (FNS), in the treatment of femoral neck fractures in patients under 60 years old. Methods Retrospectively studied 100 patients with femoral neck fractures who underwent internal fixation surgery in our hospital from January 2018 to September 2019. According to different internal fixation methods, they were divided into FNS group (observation group) and CCS group (control group). The postoperative complications and perioperative characteristics of the two groups of patients were compared, and the Harris Hip Score (HHS) was used to assess joint function before and 1 year after the operation. Results In the two groups of patients, the operation time and perioperative blood loss of the observation group were more than those of the control group (P<0.05); the bone healing time of the observation group was shorter than that of the control group, and the degree of femoral neck shortening in the observation group was also lower than the control group (P<0.05); the incidence of screw resection and the total incidence of postoperative complications in the observation group were lower than those in the control group (P<0.05). Conclusions Patients with femoral neck fractures under 60 years old could obtain satisfactory clinical results through CCS or FNS treatment. FNS had excellent biomechanical properties and showed significantly higher overall structural stability.