Color ultrasound and liver function does not exist which is more accurate, because the two check the disease of the means and principles are different, so it can not be judged. 1. color ultrasound: color ultrasound mainly refers to medical ultrasonography, mainly by the probe and ultrasound transmission, reception circuit, signal, image display and other parts of the composition. Ultrasound technology can be used to capture the blood flow movement of the body tissue movement and organ imaging. It is a morphological examination. 2. Liver function: Liver function is mainly used to understand whether there is any disease and the degree of damage to the liver through the concentration of albumin, bilirubin and other indexes related to liver synthesis, metabolism and other functions in the blood. Due to the various functions of the liver, there are many methods of liver function tests, which need to be chosen according to the diseases of the patient.