The invention relates to a double 
coptis for injection as a veterinary herbal 
medicine compound preparation and a preparation technique as well as an application thereof. The compound preparation is made from the following parts of medicines by weight: 1250 portions to 3750 portions of 
honeysuckle, 1250 portions to 3750 portions of 
scutellaria and 2500 portions to 7500 portions of 
forsythia. Sustained release accessories contain 200 portions of hydroxypropyl methylcellulose and 100 portions of 
sodium carboxymethylcellulose. The containing of sustained release accessories can reduce injection times for large animals and the stress response of large animals. The veterinary herbal injection preparation has the functions of antiviral, antibacterial, anti-inflammatory and 
antipyretic analgesic effects, as well as improving 
immunity and the like, and can be applied to 
epidemic diarrhea, transmissible gastroenteritis, swine paratyphoid, septicemia caused by various diseases, cough, dyspnea, 
skin cyanosis, arthrocele, lameness, swine 
reproduction and respiratory disturbance syndrome and cow 
mastitis caused by streptococcosis, 
haemophilus parasuis infection, contagious 
pleuropneumonia, swine 
lung plague in veterinarian clinical practice.