The invention discloses a 
gene library construction method of hereditary gynecologic tumors and a kit and relates to 
mutation of 20 genes including ATM (ATM 
serine / 
threonine kinase), BARD1 (BRCA1 associated RING domain 1), BRCA1 (BRCA1, 
DNA repair associated), BRCA2 (BRCA2, 
DNA repair associated), BRIP1 (BRCA1 interacting 
protein C-terminal 
helicase 1), CDH1 (
cadherin 1), CHEK2 (checkpoint 
kinase2), NBN (nibrin), PIK3CA (
phosphatidylinositol-4,5-bisphosphate 3-
kinase catalytic 
subunit alpha), PALB2 (partner and localizer of BRCA2), 
PTEN (
phosphatase and 
tensin homolog), RAD51C (RAD51 paralogC), RAD51D (RAD51 paralog D), STK11 (
serine / 
threonine kinase 11), TP53 (tumor 
protein p53), MSH2 (mutS homolog 2), MLH1 (mutL homolog 1), MSH6 (mutS homolog 6), PMS2 (PMS1 homolog 2, mismatch repair 
system component) and EPCAM (
epithelial cell adhesion molecule). Target regions comprise 
exon regions of coding amino acids of the above 20 genes and 20 basic group regions at each of the upstream anddownstream of each 
exon. In order to ensure that all the target regions are covered, a primer group necessary for a PCR (
Polymerase Chain Reaction) amplification process is separated into two independent primer groups for carrying out target region amplification respectively. Then a PCR product is subjected to sequencing 
label connection, 
library elution and reamplification and purification afteramplification to obtain a 
library for sequencing. The library construction method disclosed by the invention is simple and rapid in steps; the library construction cost is effectively reduced; and thelibrary covers related genes of the hereditary gynecologic tumors. A high-
throughput sequencing instrument is combined and 
related gene variation can be rapidly and accurately obtained; and the genelibrary construction method has important significance on the hereditary gynecologic tumors.