DISCLOSED ARE A PYRETHROID COMPOUND, A PREPARATION PROCESS AND THE USE THEREOF, WHEREIN THE COMPOUND IS A STEREOISOMER OF 2,3,5,6-TETRAFLUORO-4-METHOXYMETHYLBENZYL-3-(3,3,3-TRIFLUORO-1-PROPENYL)-2,2-DIMET HYLCYCLOPROPANECARBOXYLATE. THE STRUCTURE OF THE COMPOUND IS REPRESENTED BY FORMULA (A), IN WHICH THE CARBON-CARBON DOUBLE BOND IN CARBOXYLIC ACID SECTION IS Z CONFIGURATION, AND THE ABSOLUTE STEREO CONFIGURATION AT THE 1-POSITION OF CYCLOPROPANE IS R, NAMELY, THE SAID COMPOUND IS 2,3,5,6-TETRAFLUORO-4 METHOXYMETHYLBENZYL-1R-(Z)-3-(3,3,3-TRIFLUORO-1 -PROPENYL)-2,2-DIMETHYLCYCLOPROPANECARBOXYLATE. THE SAID PYRETHROID COMPOUND HAS A HIGH ACTIVITY, AND HAS A SIGNIFICANT EFFECT ON PREVENTING AND CURING SANITARY PESTS.
