A method for producing a tetrazolyloxime derivative represented by formula, the method comprising: a step C1 in which a halogenated picoline derivative represented by formula is reacted with a tetrazolylhydroxyimino derivative represented by formula, wherein R 1C represents an unsubstituted alkyl group, or an unsubstituted or substituent-containing alkoxy group, R 2C represents an unsubstituted or substituent-containing alkoxycarbonyl group, or an unsubstituted or substituent-containing acyl group, X represents a halogen atom, Z represents a halogen atom, a cyano group, a nitro group, a hydroxyl group, a thiol group, a formyl group, a carboxyl group, an unsubstituted or substituent-containing amino group, an unsubstituted or substituent-containing alkyl group, an unsubstituted or substituent-containing alkenyl group, an unsubstituted or substituent-containing alkynyl group, unsubstituted or substituent-containing aryl group, unsubstituted or substituent-containing heterocyclic group, OR 3, S p R 3, COR 3 or CO 2 R 3 (wherein R 3 represents an unsubstituted or substituent-containing amino group, an unsubstituted or substituent-containing alkyl group, an unsubstituted or substituent-containing alkenyl group, an unsubstituted or substituent-containing alkynyl group, an unsubstituted or substituent-containing aryl group, or an unsubstituted or substituent-containing heterocyclic group, and p represents a number of oxygen atoms in parentheses, and is an integer of 0 to 2), m represents a number of Z substituents and is an integer of 0 to 3, and when m is 2 or more, a plurality of the Z substituents may be identical to, or different from, each other, Y represents an unsubstituted or substituent-containing alkyl group, A represents a halogen atom, an unsubstituted or substituent-containing alkyl group, an unsubstituted or substituent-containing alkoxy group, a cyano group, an unsubstituted or substituent-containing alkylsulfonyl group, a nitro group, or an unsubstituted or substituent-containing aryl group, and n c represents a number of A substituents and is an integer of 0 to 5, and when n c is 2 or more, a plurality of the A substituents may be identical to, or different from, each other. R 2C represents an unsubstituted or substituent-containing alkoxycarbonyl group, or an unsubstituted or substituent-containing acyl group, X represents a halogen atom, Z represents a halogen atom, a cyano group, a nitro group, a hydroxyl group, a thiol group, a formyl group, a carboxyl group, an unsubstituted or substituent-containing amino group, an unsubstituted or substituent-containing alkyl group, an unsubstituted or substituent-containing alkenyl group, an unsubstituted or substituent-containing alkynyl group, unsubstituted or substituent-containing aryl group, unsubstituted or substituent-containing heterocyclic group, OR 3, S p R 3, COR 3 or CO 2 R 3 (wherein R 3 represents an unsubstituted or substituent-containing amino group, an unsubstituted or substituent-containing alkyl group, an unsubstituted or substituent-containing alkenyl group, an unsubstituted or substituent-containing alkynyl group, an unsubstituted or substituent-containing aryl group, or an unsubstituted or substituent-containing heterocyclic group, and p represents a number of oxygen atoms in parentheses, and is an integer of 0 to 2), m represents a number of Z substituents and is an integer of 0 to 3, and when m is 2 or more, a plurality of the Z substituents may be identical to, or different from, each other, Y represents an unsubstituted or substituent-containing alkyl group, A represents a halogen atom, an unsubstituted or substituent-containing alkyl group, an unsubstituted or substituent-containing alkoxy group, a cyano group, an unsubstituted or substituent-containing alkylsulfonyl group, a nitro group, or an unsubstituted or substituent-containing aryl group, and n c represents a number of A substituents and is an integer of 0 to 5, and when n c is 2 or more, a plurality of the A substituents may be identical to, or different from, each other.