The invention discloses a brick handler with mantis arms and an automatic adjusting mechanism. The brick handler comprises a first supporting frame, an adjusting bracket, a cylinder clamping assembly and a snatch correcting mechanism. A gear driving mechanism assembly is installed at the upper end of the first supporting frame, and comprises a base plate and a turbine reduction gearbox support installed at the upper end of the base plate. Drive gear stands are arranged at the two ends of the turbine reduction gearbox support, and each drive gear stand is provided with a drive gear through a bearing. Each drive gear is connected with a turbine reducer through an output shaft coupling. The turbine reducer is connected with a variable frequency motor through an input shaft coupling. Compared with the prior art, the brick handler at least has the following advantages that (1) physical labor of workers can be greatly reduced, and thus health and safety of the workers can be guaranteed; (2) the production cost of enterprises can be reduced; and (3) the technical requirements for worker operation can be lowered, brick handling efficiency is improved, and therefore great practical value can be achieved.