The invention discloses a coating matching device which comprises a matrix. A first slide cavity is arranged inside the left side of the matrix, a first guide groove is formed in the inner wall of the left side of the first slide cavity, a second slide cavity which is communicated with the first slide cavity is arranged in the matrix and is positioned on the right side of the first slide cavity, an output groove is formed in the matrix in an extension manner in the up-down direction and is particularly formed in the right side of the second slide cavity, an enclosed groove which is perforated through the output groove and extends towards the right side is formed in the top of the second slide cavity, a hopper-shaped portion is arranged on the top of the output groove, a stirring portion is arranged on the top of the hopper-shaped portion, a third slide cavity is arranged in the matrix and is positioned above the first slide cavity, third guide grooves are correspondingly formed in the inner walls of the left side and the right side of the third slide cavity, a spiral rod is arranged in the first slide cavity, a first electric rotary machine is connected with the bottom of the spiral rod, and a pushing and lifting block is fittingly connected onto the spiral rod in a threaded manner. The coating matching device has the advantages that the coating matching device is simple in structure, reasonable in design and easy to operate, stirring and discharging work can be automatically controlled, and accordingly the amount of labor can be reduced for workers; the coating matching device is low in service cost, uniform stirring effects can be realized, the stirring efficiency can be improved, and existing requirements can be met.