Manufacturing method of disposable cake paper cup

The invention discloses a manufacturing method of a disposable cake paper cup, which comprises the following steps of: pressing the center of a circular paper sheet by using a circular pressing rod to form a circular cup bottom, and enabling the side edge around the cup bottom to incline upwards to form a slope shape; moving the circular cup bottom of the circular paper sheet downwards, and folding a plurality of parts of the side edge around the cup bottom to form a cup body with a plurality of folded edges which are stacked in sequence; the outer edge of the circular paper sheet is clamped, so that the cup body moves upwards to form a U-shaped cup opening; the lower edge of the U-shaped cup opening is bent and curled upwards to be attached to the outer wall of the cup body, and a circular-tube-shaped cup opening is formed. According to the disposable cake paper cup, the disposable cake paper cup can be manufactured through one-time pressing of a round paper piece, the cup body and the cup bottom do not need