 --  1  2   --    T V                       -       -3-1. ---- --  --   U -- --  C  SU(3) L  U(1) X   1  2   L   L [1].            c aR aL aL aL l   ~ (1,3,-1/3), (1,1,-1)~ aR l , a =1,2,3. (1)   C , SU(3) L  X .  (3,1,-1/3)~D (3,1,2/3),~ U,(3,1,-1/3)~ d (3,1,2/3),~ RR  aRaR u (2)  L   L .  (1,3,-1/3)~ 0 3 2 0 1                   , (1,3,2/3)~ 3 0 2 1                    (3)               0 2 1 u ,            0 0 2 1 v  (4)  SU(3) C  SU(3) L  U(1) X )1(  SU(3) C  SU(2) L  U(1) Y )2(  SU(3) C  U(1) Q  TeVuv   GeV  vu, .  (5)  LNC  LNV    L   (6)  (7)          (8) ϕ. Khai tri--  a T  L  9 T   X , NC P  CC P  - 1  2 -  6  7  0  3  4 .  (9)    (10)   0  Higgs tru        0 1                - 0 , H 0 1   W ,  Y ).   00    (11)    --  0 W + W -   0 Y + Y - , H 0 W + Y - , H 0 Y + W -  0 W + Y - , H 0 Y + W - .   -  H  ϕ.     WH  :    YH  :   -photon  (12)  [1]. - --  --        HHH 0 (13)   HHH 0 1 (14)    0   0   0 1 H   0 1 H       --  -  --  0 1 0 ,HH   -              -                  -    1.  2. P. V. Dong, H.N. Long, Economical 3-3-1 model, Adv.High Energy Phys.2008:739492, 2008. 3. D. T. Binh, T.T. Huong, D. T. Huong, H. N. Long and D. V. Soa, Quartic gauge boson coupling and tree unitarity in the 3-3-1 models, J.Phys.G29: pp.1213-1226, 2003. 4. William J. Marciano, Cen Zhang and Scott Willenbrock, Higgs decay to two photons Phys.Rev D85, 013002, 2012. INTERACTIONS OF HIGGS BOSON IN ECONOMICAL 3-3-1 MODEL Ha Thanh Hung, Nguyen Thi Thu Hang Abstract In this work, we indicate all interactions of Higgs bosons in economical 3-3-1 model, include neutral Higgs and charge Higgs. Thereby, we can calculate amplitudes of Higgs decay processes to two photons, and it is interested in accelerators, contribute to improve the theoretical model and put development science. . work, we indicate all interactions of Higgs bosons in economical 3-3-1 model, include neutral Higgs and charge Higgs. Thereby, we can calculate amplitudes of Higgs decay processes to two photons,. J. Marciano, Cen Zhang and Scott Willenbrock, Higgs decay to two photons Phys.Rev D85, 013002, 2012. INTERACTIONS OF HIGGS BOSON IN ECONOMICAL 3-3-1 MODEL Ha Thanh Hung, Nguyen Thi Thu Hang. Economical 3-3-1 model, Adv.High Energy Phys.2008:739492, 2008. 3. D. T. Binh, T.T. Huong, D. T. Huong, H. N. Long and D. V. Soa, Quartic gauge boson coupling and tree unitarity in the 3-3-1 models,