A kind of feeding robot arm system,It includes have processing unit,Robotic arm,Ranging sensor,Feeding switchs and selects vegetable dish,When feeding switch issue feeding signal to processing unit to carry out feeding program when,It is in the light on and off one by one of horse race lamp form that the determinant LED of vegetable dish is selected in processing unit starting,When the position for lighting LED in determinant LED corresponds to the position of food in service plate or lunch box,Processing unit learns the position for lighting LED in determinant LED,To learn the position of the service plate or lunch box to be eaten,And by processing unit driving robotic arm into service plate or lunch box with clamping food,And processing unit drives robotic arm to take food carry out feeding for folded to positioning according to predetermined feeding position.一種餵食機器手臂系統，其包含有處理單元、機器手臂，測距感測器，餵食開關及選菜盤，當餵食開關發出餵食信號至處理單元以進行餵食程序時，處理單元啟動選菜盤之行列式LED呈跑馬燈形式逐一亮滅，在行列式LED中之點亮LED之位置對應餐盤或飯盒中食物的位置時，處理單元得知行列式LED中之點亮LED之位置，以得知所要食用之餐盤或飯盒的位置，而由處理單元驅動機器手臂至餐盤或飯盒中以夾取食物，且處理單元根據預定之餵食位置以驅動機器手臂至定位而將所夾取食物進行餵食。
