Display substrate and fabrication method therefor, and display apparatus

A method for preparing a display substrate, comprising:

• forming a partition structure on a base substrate;
• forming a conductive thin film on the base substrate, such that the conductive thin film forms an anode and an auxiliary cathode that are insulated from each other, wherein an orthographic projection of the anode on the base substrate does not overlap with an orthographic projection of the partition structure on the base substrate, and an orthographic projection of the auxiliary cathode on the base substrate does not overlap with the orthographic projection of the partition structure on the base substrate;
• forming a light-emitting layer on a side of the anode away from the base substrate, the light-emitting layer being connected to the anode, and the light-emitting layer being blocked at the partition structure;
• and
• forming a cathode on a side of the light-emitting layer away from the base substrate, the cathode being connected to the light-emitting layer, the cathode being blocked at the partition structure, and the cathode being electrically connected to the auxiliary cathode.