Objective Due to the problem of tedious and time-consuming routine evaluation in rehabilitation training,this research discussed the new method of evaluating the movement function of human shoulder joint for hemiplegic patients.Methods Twenty healthy volunteers were chosen as the multi-joint system (MJS) experiment group. Then the MJS experiment of human upper limb was designed and carried out,and the evaluation data was analyzed. Furthermore,20 hemiplegic patients who were evaluated by routine methods were chosen as the routine group. All of the patients were assessed with the Fugl-Meyer assessment (FMA) for upper limb. Meanwhile the data and the characteristics of the movement evaluation for upper limb were analyzed. Results The correlation analysis showed no difference on the characteristics of evaluating the shoulder joint movement of healthy persons (P>0.05). Multiple regression analysis showed that horizontal abduction angle was introduced,with a statistically significant difference (P <0.05). To the data analysis on evaluating the upper limb movement function of hemiplegic patients,Multiple regression analysis showed that abduction angle was introduced,with a statistically significant difference (P<0.05). Conclusions The abduction angle of shoulder joint has the biggest impact on the assessment level and the FMA score of the movement function in shoulder joint.