The invention provides a framework stock bin capable of distributing materials automatically. The framework stock bin comprises a slide plate (64) and a back plate (61), a feeding slide way (65) and multiple discharging slide ways (62) are formed in the slide plate (64), the discharging slide ways (62) are all connected and communicated with the feeding slide way (65), multiple material distributing protrusions (68) are arranged on the feeding slide way (65), the material distributing protrusions (68) are opposite to the discharging slide ways (62), and the back plate (61) is fixedly connected with the slide plate (64) and covers the feeding slide way (65) and the discharging slide ways (62). By means of the framework stock bin, in the process when frameworks entering the framework stock bin slide along the feeding slide way, the movement direction can be changed due to collision between the frameworks and the material distributing protrusions on the feeding slide way, thereby the frameworks can enter the discharging slide ways opposite to the material distributing protrusions till all the discharging slide ways in the framework stock bin are filled with sufficient frameworks, and automatic material distribution of the frameworks entering the framework stock bin is well achieved.