This paper presents an image-based human face fusion algorithm，which can be used in medicinal beauty and digital entertainment areas.This paper combines facial features extraction with image fusion algorithm，so that we can automatically obtain synthesis results without using 3D facial models.Our system allows users to adjust the interpolation weights between source image and target image to control the similarity degree.Furthermore，we use Laplacian as constraints to reduce shadows near the nose.The experiment results show that our algorithm is efficient enough for practical demands.