Electroencephalogram cap for multi-ensuring contacts in close contact with scalp using socket structure

The invention relates to an electroencephalogram cap for multi-ensuring contacts in close contact with scalp using a socket structure. The electroencephalogram cap has certain random error for acquisition of an electroencephalogram signal. The electroencephalogram cap comprises a hemispherical electroencephalogram cap main body, electrode holders, meridian fixing locks, a chin fixing band and electrode pins, wherein the electrode holders are fixed on the main body according to electrode positions F3, F4, C3, C4, P3, P4, O1 and O2 in an international 10-20 system; the meridian fixing locks are positioned below ears on the two sides; the chin fixing band is used for connecting the meridian fixing locks on the two sides; and the electrode pins are matched with the electrode holders for use. The main body is constituted by an elastic fabric. Meridians are arranged in the electroencephalogram cap; the two ends of the meridians are fixed on the meridian fixing locks on the two sides of the electroencephalogram cap main body; and each meridian passes through two corresponding electrode holders on the left side and the right side of a head. The electroencephalogram cap is easy and convenient to use and operate; the defect of complex operation of the electroencephalogram cap applying conductive paste existing in the prior art is overcome; and the preparation work for electroencephalogram acquisition can be quickly finished.