The present invention relates to a biocidal pesticide composition comprising a fungicidal or insecticidal active herbal extract suspended in plant oil based emulsion containing plant oil, emulsifier and water, and a method for producing the same. More particularly, this invention relates to a biocidal pesticide composition comprising 1˜20 wt part of at least one fungicidal or insecticidal herbal extract selected from Phytolaccae Radix, Cinnamomi Cortex Spissus, Artemisiae Iwayomogii Herba or Pulvis Sophorae Radicis suspended in 100 wt part of plant oil based emulsion, and a method for producing the same.