Method for manufacturing glass substrate

The purpose of the present invention is to provide a method for manufacturing a glass substrate which is capable of efficiently improving the cleanliness of the surfaces of the glass substrate. This method for manufacturing a glass substrate comprises: a cutting step of cutting the glass substrate; an edge machining step of machining cut edges which are cut surfaces of the glass substrate cut in the cutting step; and a surface treatment step of treating the main surface of the glass substrate cut in the cutting step. In the edge machining step, the shape of the cut edges is machined while a grinding fluid is fed to the cut edges. In the surface treatment step, an alkaline solution having a pH of less than 10 is applied onto the main surface, and the surface treatment step is performed at the same time as the edge machining step. 本发明的目的在于提供种能够使玻璃基板表面的清洁性有效率地提高的玻璃基板的制造方法。本发明的玻璃基板的制造方法具备：切断步骤，切断玻璃基板；端面加工步骤，对在切断步骤中被切断的玻璃基板的切断面也即是切断端面进行加工；以及表面处理步骤，对在切断步骤中被切断的玻璃基板的主表面进行处理。端面加工步骤是边对切断端面供给研削液边加工切断端面的形状。表面处理步骤是将pH值小于1