good/finance/report/report_voucher.xml

<?xml version="1.0"?>
<odoo>
    <record id='report_voucher_word' model='ir.actions.report'>
        <field name='model'>voucher</field>
        <field name='name'>打印会计凭证</field>
        <field name='report_type'>docx</field>
        <field name='report_name'>voucher_word</field>
        <field name='template_file'>finance/template/voucher.docx</field>
        <field name="binding_model_id" ref="model_voucher" />
        <field name="binding_type">report</field>
    </record>
</odoo>