The invention discloses a site testing device for pavement interlayer bonding intensity. The site testing device comprises a substrate, a fixing device and a rotation device, wherein the fixing devicecomprises a first fixing device and a second fixing device which are fixedly arranged on the substrate; the first fixing device and the second fixing device can clamp or release a structure layer tobe detected; the rotation device is fixedly arranged on the substrate through a bracket; the rotation device and the second fixing device are connected for driving the second fixing device to rotate.According to the site testing method for pavement interlayer bonding intensity, binding intensity among different structure layers of the pavement structure can be tested in site, the problem of bigger experiment error due to unreasonable loading ways can be easily solved, the damage area of an original pavement is relatively small, and an experiment method is simple.