The invention belongs to the technical field of molecular diagnosis, and particularly relates to a method and detection kit for detecting
ERBB2
gene amplification based on a digital PCR technology. The kit comprises primer and probe premix liquid, wherein the premix liquid comprises upstream and downstream primers for detecting an
ERBB2
gene, a fluorescent probe for detecting the
ERBB2
gene, upstream and downstream primers for detecting a human ATCB
reference gene, and a fluorescent probe for detecting the human ATCB
reference gene. The method comprises the following steps of S1, providing a detection sample of a testee, wherein the detection sample is a
plasma sample; S2, extracting ctDNA of a to-be-detected sample from the
plasma sample in the step S1; S3, performing an amplification reaction on the sample extracted in the step S2 by using a digital PCR platform; and S4, analyzing and interpreting an amplification result. The ERBB2 gene amplification detection method provided by theinvention is based on a micro-droplet digital PCR detection
system, reduces the interference of manual operation, has the advantages of stable result, high accuracy and good data amplification effect,and can be more conveniently used for auxiliary diagnosis and
clinical treatment guidance.