A shipboard multi parametric active passive blue green light ocean lidar system (BLOL) was developed, which can be used for the validation of remotely sensed ocean color in the East China Sea. The BLOL can be used for passive measurement of water leaving radiance L w and active measurement of the diffuse attenuation coefficient k(532 nm) and chlorophyll a concentration C. The lidar system was installed on the research vessel (about 2500 t) of Ocean University of Qingdao. The experiment was conducted at 21 stations. The experiment region is between Shanghai and west Okinawa. The results measured by BLOL were consistent with those obtained by using traditional method.