Totally enclosed parallel groove clamp insulation guard shield. Relate to distribution equipment, especially relate to totally enclosed parallel groove clamp guard shield. The utility model provides a simple structure, the convenience is processed, improves life's totally enclosed parallel groove clamp insulation guard shield. The both ends of casing no. 1 are equipped with a pair of semicircle mouth no. 1 respectively, the both ends of casing no. 2 are equipped with a pair of semicircle mouth no. 2 respectively, semicircle mouth no. 1 forms with two one -to -ones in the semicircle mouth wears the mouth, and adjacent wear is equipped with the interval between the mouth, casing no. 1 and casing are equipped with joint strip between two, joint strip is located mouthful, connection piece no. 1 and connection piece be between two and adjacent wearing between the mouth. Joint strip is including relative sealing strip that sets up no. 1 and sealing strip no. 2, sealing strip no. 1 is established on casing no. 1, sealing strip no. 2 is established on casing no. 2. Joint strip includes the sealing strip, be equipped with the seal groove that corresponds with the sealing strip on the casing no. 2. The utility model discloses with low costs, convenient and practical have very high popularization and using value.