The subject wants to ask, "Is the diploma of Dalian Cooking Vocational Secondary School an adult college?" No, according to official website of Dalian Cooking Vocational Secondary School, the students who graduated from Dalian Cooking Vocational Secondary School are secondary school diplomas, not adult college diplomas. Dalian cooking vocational secondary school was founded in 1982, which is a national public secondary vocational school directly under Dalian Education Bureau, a key vocational secondary school in Liaoning Province, and a cooking teaching and research center in Liaoning Province and Dalian City. It is also the "National Chinese Cooking Standard Training and Experimental Base" and the "National Vocational Skills Appraisal Institute".