Uses for Next-Generation Sequencing (NGS) technology. CongrPE is a de novo assembly algorithm which was based on Contig growing of Paired-End Read mechanism. The assembly included four step: pre-process, seed contig generation, seed contig growing and scaffold. Current congrPE is a draft version without parameter setting except insert size. The result contigs are import in file result.fa and the output of programme gives the N50 result.