Abstract: ‘Heilonggua 1’is a new pumpkin F1 hybrid．The plant possesses many sprawls，and exhibits strong growth potential. The first female flower locates at 6th to 8th node of the main stem. The single plant can bear 2–4 fruits. The single oblate fruit weight is 1.0–1.5 kg with 12–18 cm in transverse diameter and 8–10 cm in longitudinal diameter. The appearance of the fruit looks good，including dark black-green skin with green stripes and spots.‘Heilonggua 1’has good quality with orange thickness flesh，dense meat. It tastes sweet，floury and delicious. The average yield is about 36 000 kg ? hm-2. This cultivar has resistance to powdery mildew，downy mildew，and good adaptive capacity. The new pumpkin cultivar is suitable for spring to be widely cultivated in Heilongjiang Province.

Key words: pumpkin, hybrid, cultivar