The invention discloses an antibacterial and environment-friendly lavender interior wall latex paint which is ageing-resistant, non-scaling, non-discoloring, strong in weather fastness, nontoxic, odorless, good in levelling property, easy to construct, brushing resistant, nontoxic, harmless, and fresh in smell, has a healthcare effect, is beneficial to human health, still is capable of keeping original strength and quality after proper addition of other functional components, is capable of releasing air negative ions for a long period of time, purifying air, benefiting human health and restraining and sterilizing bacteria, is sweet in smell, and mild in property, and has the efficacies of refreshing and soothing the spirit, promoting secretion of hormones, alleviating anxiety, improving insomnia and the like, thereby releasing psychological tensions and improving work efficiency. More importantly, the antibacterial and environment-friendly lavender interior wall latex paint does not generate a harmful effect on a human body and is suitable for people of all ages.