It can realize rapid detection of organophosphorus and carbamate pesticide residues on site. It can be widely used in the detection of pesticide residues in vegetables and fruits in product quality supervision and inspection, health and epidemic prevention, environmental protection, industrial and commercial management, vegetable wholesale market, vegetable production base, supermarket, shopping mall, pesticide residue monitoring system and other departments. When measured by spectrophotometer (wavelength 4 12nm), the inhibition rate is calculated according to the following formula: inhibition rate (%)=[(δα0-δαT)/δα0]× 100. The inhibition rate can be automatically calculated when the pesticide residue rapid tester is used for detection. If the inhibition rate of the sample is ≥50%, it means that the pesticide residue in the sample exceeds the standard and is a positive result. Samples with positive results need to be tested more than twice, and samples that are still positive after repeated tests need to be further confirmed by gas chromatography and other instruments.