The firm reported 245.5bn yuan ($37bn, £28bn) in revenues, up from 175.6bn yuan for the same period last year.
It did not disclose its net profit but said the operating margin was 12%, down from 18% in the first half of 2015.
Huawei is the third-biggest smartphone vendor in the world behind Samsung and Apple and one of the world's largest telecommunications firms.
Originally known for its low-cost smartphones, Huawei has now moved into higher-end models.
The company said it had seen steady growth across all its business sectors.