Mass spectrum chip

The invention relates to a mass spectrum chip. The mass spectrum chip comprises two mass spectrum chip planes parallel to each other and an electrode group unit, and the plane of the mass spectrum chip is a complete plane. The electrode group unit comprises at least two electrode groups including a first electrode group and a second electrode group; the first electrode group comprises at least two separated electrode pairs; the separation electrode pair consists of two separation electrodes which are respectively arranged on the two mass spectrum chip planes which are parallel to each other; after radio frequency voltage is applied to at least one separation electrode pair, a quadrupole electric field is formed in a specific area between the planes of the two mass spectrum chips and is used for binding and separating ions; the second electrode group is used for detecting ions and comprises at least one detection electrode pair; and the detection electrode pair consists of two detection electrodes which are re