The invention discloses composite probiotics capable of increasing the survival rate of piglets, and relates to the technical field of microorganisms. The composite probiotics consist of probiotics and avian immunoglobulin IgY. The composite probiotics can reduce the incidence rate of yellow dysentery, white dysentery, other intestinal bacterial loose bowels, and diarrhoea of piglets, increase thesurvival rate of the piglets, promote development of immune organs of the piglets, enhance the immunity and the disease resistance of the piglets, reduce the attack rate, complement intestinal probiotics, adjust intestinal flora environment of the piglets, strengthen the resistance of the piglets to environment stress, improve the chronicity and the stability of the health of piglet groups, protect the normal development of intestinal mucosae and intestinal villi, and improve the nutrient absorption capacity. When the avian immunoglobulin IgY is used, blood sampling is not needed, only eggs produced by immune hens need to be collected, so that antibodies can be obtained; and a small quantity of antigen immunity birds are used, a large quantity of specific IgY homogeneous in quality can beobtained, and the avian IgY and mammal immunoglobulin cannot generate a cross serologic reaction.