Abstract: It is similar to the study of the structure of a photon that if the supersymmetry companion of now neutrino ｖ２ｅ，Ｆ（ｑ１，ｇ，ｇ），namely the neutralino Ｕ０ｅ，Ｂ（ｑ２，ｇ－)，captures from subquark sea two pairs of now colored subquark ｂｃｂ－ｃ，one pair being used to make Ｕ０ｅ，Ｂ（ｑ２，ｇ－) form ｙ－２／３ｅ，Ｂ（ｑ２，ｂ－ｃ) and the resonance state Ｂ＋２／３ｃ（ｂｃ，ｇ－) of an antilepton-quark，and the other used as gluon-strings sticking both together，which is equal to a charged harmonic oscillator formed by gluon-strings gluing ｙ－２／３ｅ，Ｂ（ｑ２，ｂ－ｃ），Ｂ＋２／３ｃ（ｂｃ，ｇ－） and Ｂ＋２／３ｃ（ｂｃ，ｇ－) together，the characteristics of strong interaction of this system appear.Because Ｂ＋２／３ｃ（ｂｃ，ｇ－） is the resonance state （ｌ－－ｑ） of the antilepton-quark and its propagation particle is matter ε－ｅ（ｑ－１，ｑ２） heavier than Ｗ±１ and Ｚ°，the properties of weak interaction of this system appear,too.Some principles and methods applied before to analysing the structure function of a nucleon can be used to neutrinos，therefore the structure function of a neutrino is given.

Key words: supersymmetry;neutralino;large mass scale;antilepton-quark resonace;ε－ｅ , matter