The invention relates to the field of manufacture technology of fertilizers, and provides a compound fertilizer for seedling growing of Kiwi berry as well as a preparation method thereof. The compound fertilizer comprises the following components in parts by weight: 20-30 parts of carbon resides, 10-20 parts of crude river sand, 1.5-3 parts of ferment bacteria, 10-20 parts of vermiculite, and 5-10 parts of a rooting agent. The compound fertilizer has the advantages of effective improvement of soil, promotion of rooting rate of Kiwi berry fruit trees, reduction of production cost, and the like. The preparation method of the compound fertilizer for seedling growing of Kiwi berry comprises the following steps: carbon resides and vermiculite are mixed, a first crushing is carried out in order to form a first mixture, the first mixture and the crude river sand are mixed, a second crushing is carried out in order to form a second mixture, and the second mixture, the ferment bacteria and the rooting agent are mixed. The preparation method has simple technology, and can be used for effectively preparing compound fertilizers with excellent performance.