The utility model provides paint detection equipment after paint production, which belongs to the technical field of paint detection and comprises a base, an inner detection frame plate and a sieving anti-blocking device are arranged at the top of the base, and an outer detection frame plate is arranged at the bottom of the inner detection frame plate. The flattening detection device comprises a limiting sliding frame, an inner sliding rod, a bearing piece, a first surface pressing sliding block, a second surface pressing sliding block, a threaded hole, a mounting bolt, a flattening plate, a paint injection groove, a connecting cylinder piece, a bearing seat body, a limiting sliding plate and a limiting sliding block. According to the utility model, the flattening detection device is arranged, the flattening plate slides along the paint surface and continuously scrapes and moves for detection, the position of the second surface pressing slide block can be adjusted to enable the pressing area to be different, and the area of the second surface pressing slide block is also changed when the second surface pressing slide block rubs against the top of the paint; rapid comparison before pressing and after pressing can be obtained through adjustment according to needs, a detection result can be conveniently obtained through comparison, and the applicability is high.