A new type of miniature camera module for medical endoscope is designed.The module is designed combines miniaturization

high-resolution CMOS image sensor with low voltage differential signal（LVDS）transmission technology

which makes diameter of the camera module reduced to 5.0 mm

and image datas can be transmitted over long distances without distortion.A test platform is built up to test camera function of the camera module.Experimental results indicate that resolution of module reaches to 300 thousand pixels

image transmission distance is over 2 m

and identification rate of mucosal lesions of oral ulcer is up to 90 %.The image resolution is high and transmission distance is long

which enable camera module suitable for video endoscope;the small diameter can greatly improve comfort of patient and provide an excellent solution for ultrafine endoscope diagnosis.