Sixty Soybean cultivars or lines were evaluated for their responses to strains 41 1, PMC1, USAR1, PSZJ6, and USAR17 of Phytophthora sojae using the hypocotyls inoculation technique. Fifty cultivars or lines were identified that confer resistant or intermediate responses to one or more of the five strains of the pathogen. Of these, 5, 8, 16, and 21 cultivars or lines confer resistant or intermediate responses to 4, 3, 2, and 1 strain of the pathogen, respectively. Sixty cultivars or lines elicited 12 different reaction types with the 5 strains of the pathogen. The cultivars or lines showing reaction type RRSSR were postulated that carry gene Rps1a or Rps1c. Line Nongda 3861 was inferred to possess gene Rps3c. The cultivars or lines showing reaction type SSSSS were deduced that have gene Rps7 or no resistant gene. Unknown genes were postulated to occur in the cultivars or lines that elicit the other reaction types. In Heilongjiang province, there are more plentiful soybean cultivars or lines resistant to Phytophthora root rot, and majority of the resistant cultivars or lines are effective to prevalent virulence of P. sojae, and can be used for Phytophthora root rot control.