The invention discloses an operator limb force applying test auxiliary bracket which is suitable for a limb force applying test when the stipulated postures are performed by 5-95 percent by height of operators. The operator limb force applying test auxiliary bracket comprises a bracket base, a standing posture test auxiliary assembly, a pedaling force test auxiliary assembly and a sitting posture hand operating force test auxiliary assembly, wherein the bracket base is used for maintaining the stability of the whole bracket in the test process; the standing posture test auxiliary assembly is used for fixing mechanical sensors of single-hand pushing/pulling force, rotating force, finger pinching force, and the like in a standing posture and positioning a body posture; the pedaling force test auxiliary assembly is used for maintaining the operators to present stipulated postures when the pedaling force of the operators in a sitting posture is tested; and the sitting posture hand operating force test auxiliary assembly is used for maintaining the operators to present the stipulated postures when the hand operating force of the tested operators in a sitting posture state is tested. The invention has the advantages of reasonable structural design and high integral stability during force test and fully ensures the validity of test data of the operators in the corresponding operating postures.