Auxiliary connecting device for building templates

The utility model relates to the technical field of building templates, in particular to a building template auxiliary connecting device which comprises a left template, a right template, a sealing block, a left clamping box and a right clamping box. The bottom side of the right end of the left template is connected with the top side of the left end of the sealing block, and the bottom side of the front end of the right template is connected with the top end of the right side of the sealing block; the bottom end of the left clamping box is connected with the upper side of the top end of the left template, the bottom end of the right clamping box is connected with the top end of the right template, and the right side of the left clamping box is connected with the front end of the right clamping box. And then distance adjustment is conducted through telescopic rods in the left clamping box and the right clamping box to be suitable for connection of templates with different distances and thicknesses, so that the