The invention discloses an automatic meal delivery method with strong continuity. In the absence of children or caregivers, elderly people with mobility problems are inconvenient to eat. A meal delivery system comprises a nursing bed, a meal delivery mechanism, a food storage cabinet, a transport trolley and a food supply cabinet. The meal delivery mechanism comprises a transverse carriage, a transverse slider, a transverse driving member, a longitudinal slider, a longitudinal slider, a longitudinal driving member, a tilting lever, a first articulation motor, a second articulation motor, a connecting plate, a first comb rack and a feeding robot arm. The food supply cabinet includes a supply rack, a supply side panel, a supply bottom panel, a supply partition and a push-out mechanism. The transport trolley comprises a seat, a traveling drive assembly and a comb carrier. The food storage cabinet includes a storage frame, a first storage partition, a second storage partition, a heating pipe, a first shelf, a second shelf, and a storage lifting mechanism. The method can assist the nursing person to defecate and can clean and dry the buttocks of the nursing person after defecation.