A cancer screening processor includes a database which stores a sample information database storing information on a number of dispensed samples of urine sent from subjects; the sample dispensed for a cancer type which the subject desire a screening, a center selection unit which selects an analysis center C2 for each of cancer type to be analyzed by using a urinary tumor marker; the analysis center C2 receiving a sample container including dispensed sample on the basis of the cancer type and information from analysis centers, and a processing unit which counts a number of the sample containers on the basis of the sample information database, and performs a process step of sending the sample container to the analysis center when the number of the sample containers becomes equal to a number in the information from the analysis center.