The utility model relates to a but installing support of remotely adjusting antenna machinery angle of declination is applicable to the mechanical angle of declination of remotely adjusting antenna. The utility model discloses the installing support comprises upper bracket and lower carriage, the upper bracket includes upper bracket antenna connection board, upper bracket mount pad, long arm, cylinder, galianconism, upper bracket fixture block and upper bracket briquetting, the installation of upper bracket antenna connection board is fixed on antenna body upper portion, and the installation of upper bracket mount pad is fixed on upper bracket antenna connection board, upper bracket mount pad and long arm upper end swing joint, long arm lower extreme and galianconism lower extreme swing joint, galianconism upper end and upper bracket fixture block swing joint. Bottom sprag seat and galianconism revolving stage swing joint are passed through through top supporting seat and long arm revolving stage swing joint, the bottom of cylinder in the piston rod upper end of cylinder, the upper bracket fixture block passes through the stay bolt chucking on embracing the pole with the upper bracket briquetting, the lower carriage includes lower carriage antenna connection board, lower carriage mount pad, lower carriage fixture block and lower carriage briquetting.