The invention relates to a security installation device, in particular to a security camera installation device. The security camera installation device comprises an installed L-shaped base, a perpendicular swing mechanism, a transverse swing mechanism and an adjustable and anti-shock mechanism. The security camera installation device adopts the lever principle to solve the problem of the perpendicular square rotation failure of a pan tilt due to the over-high total weight of a camera and the protecting cover of the camera and the like, the camera can be positively installed on the security camera installation device and can also be installed by adopting a hoisting way, the security camera installation device has the windproof function, and the fact that the camera effect is influenced dueto shaking of the camera during wind blowing is avoided accordingly; and the perpendicular swing mechanism is fixedly installed on the installed L-shaped base, the adjustable and anti-shock mechanismis installed on the perpendicular swing mechanism, and the transverse swing mechanism is installed on the perpendicular swing mechanism