The utility model relates to clock product technical field, in particular to a clock battery installation structure, which comprises and is characterized in that: a clock body, a clock movement arranged inside the clock body, and a battery case. A connecting wire is connected between the anode and cathode of the battery case; the battery case is arranged inside the clock body, and the opening end of the battery case is arranged outside of the clock body; a cover board at the out side of the cover board is snap embedded at the opening end of the battery case. A neck is arranged at the edge of the opening end of the battery case; the cover board is snap embedded inside the neck. Adopting the structure, the battery case is communicated with the clock movement, therefore the battery case can still be arranged on the clock body. When the clock needs to replace the battery, just open the cover board at the opening of the battery case at the out side of the clock body, and take out the old useless battery, and put in the new battery, needless of opening the clock body at convenient and swift operation.