Objective:This study aims to introduce the manufacture and use instruction for a simple and multifunctional device for mouse fixation. Methods:Discarded 50 mL centrifuge tubes were collected and processed into the fixation device according to the pre-designed program. A total of 60 mice were randomly and equally assigned into two groups and fixed with traditional methods(control group)and this fixation device(study group),respectively. Tail vein injections or tail-clamping blood sampling or intra-articular injections were performed. The procedure durations and success rate were recorded. Results:A single 50 ml centrifuge tube weighed about 12 g and mere 15 minutes were taken to manufact the fixation device. The procedure durations of tail vein injection,tail-clamping blood sampling and intra-articular injections in control and study groups were(32.10±1.97)s and(30.27±2.20)s,(30.10±1.73)s and(28.67±1.55)s,and(40.77±2.73)s and(38.73±2.16)s,respectively. The data between two groups were significantly different(P<0.01). The success rates of the three procedures in control group study group were 100% and 100 %,100% and 100%,and 83.33% and 95.00%,respectively. There were significant differences in procedure duration and success rate between two groups(P<0.05). Conclusion:The mouse fixation device possesses the advantages of easily available materials,simple manufacture,convenient transportation and multiple functions. It provides a new safe and reliable choice for mouse fixation in the experiment and is worthy to be promoted.