Construction equipment of which protection structure for an operator's cab when rolling over can be constituted to be favorable in visibility, transportability, and assembling and disassembling operability is provided. For this purpose, the construction equipment includes an upper revolving superstructure frame (4) rotatably loaded on a base carrier (3); and an operator's cab (7), a working machine (5) and a counterweight (6) which are provided on the upper revolving superstructure frame. Further, an operator's cab protection frame (10A), which includes an operator's cab protection member (11), supporting members (12A, 13A) for supporting the operator's cab protection member and mounting members (19, 19) with which base end portions of the supporting members are mounted to a vehicle body, is mounted to the upper revolving superstructure frame, and is provided upright behind the operator's cab.