The invention discloses a soft peach jelly and a preparation method thereof. The jelly consists of the following components in parts by weight: 30-50 parts of peach pulp, 0.2-0.4 part of jelly powder,0.1-0.4 part of vitamin C, 0.02-0.2 part of citric acid, 0.6-1 part of white spirit, 10-20 parts of sugar and the balance of water. The preparation method comprises the following steps: placing common peaches for after-ripening to obtain soft peaches, peeling the peaches by steam, pulping the peaches, and performing decocting to obtain the peach pulp; weighing the jelly powder, the vitamin C, thecitric acid, the white spirit and the sugar as needed according to the parts by weight of the components, adding the components into the decocted peach pulp, adding the water, and performing uniformstirring in vacuum to obtain a jelly liquid for later use; putting two half-petal peach bodies which can be buckled with each other into a packaging bag, injecting the jelly liquid into the middle ofthe two half-petal peach bodies, performing vacuumizing, and sealing the opening by hot iron; and after sealing, placing the packaging bag in hot water heated to 75-90 DEG C, and performing cooling for forming. The soft peach jelly prepared by the invention has the advantages of high fruit content, high nutritive value, green, nature, and good taste.