To provide a molecular diagnosis system for human lung cancer which can be used in common for four pathologic conditions of the human lung cancer and by which the four pathologic conditions can be automatically identified.

A fluorescence value of specimen cells and a fluorescence value of normal lung-derived cells are obtained from a DNA microarray on which a DNA probe set including oligonucleotide consisting of a DNA sequence expressed in sequence numbers 1-80 is mounted. Four evaluations concerning the fluorescence value are outputted for each spot. The result of estimation of each spot is cross-checked with an evaluation table of each pathologic condition which is previously prepared and the result of diagnosis of lung cancer is automatically determined.