Construction safety assembled ladder cage module

The invention discloses a construction safety assembled ladder cage module, comprising a ladder; a lower frame including a lower rectangular frame formed by L-shaped steel angles which open inward; anupper frame including an upper rectangular frame formed by inverted L-shaped steel angles which open inward; a front pillar frame, wherein two front pillars parallel to each other are arranged on thetwo sides of the front pillar frame, two ends of the front pillars are arranged in two inner corners of the front ends of the upper and lower rectangular frames respectively and are respectively abutted to and releasably, fixedly and integrally connected with the L-shaped steel angles and the inverted L-shaped steel angles; a rear pillar frame, wherein two rear pillars parallel to each other arearranged on the two sides of the rear pillar frame, two ends of the rear pillars are arranged in two inner corners of the rear ends of the lower and upper rectangular frames and are respectively abutted to and releasably, fixed