To isolate the useful and interesting plant genes in large quantities from Brassica raga, random partial sequencing of leaf and inflorescence cDNA clones of Brassica rapa was carried out. cDNA libraries were made with mRNA prepared from leat and inflorescence organ of Brassica rapa, respectively. Approximately 50% of the cDNA clones contained cDNA insert longer than 300bp. Most of the clones have the poly(A) tail sequences. Partial nucleotide sequences of individual cDNA clone from both organs have been determined and compared with nucleotide: sequences in EMBL and amino acid sequences in PIR data bank. Preliminary results promise a good chance to get useful genes by this attempt.