A hybrid-type working machine comprising: an engine (11, 212); a motor generator or an electric generator connected to the engine; a plurality of electric loads (21, 23, 25, 221, 222, 228, 229); an electric storage part (19, 216) that supplies electric power to at least one of the motor generator and the electric loads (21, 23, 25, 221, 222, 228, 229); and a control part (30, 240) that controls said engine (11, 212), said motor generator or electric generator, said electric loads (21, 23, 25, 221, 222, 228, 229) and said electric storage part (19, 216), wherein the control part is configured to: set a priority to each of said electric loads (21, 23, 25); characterised in that the control part is further configured to: compute an available electric power suppliable from said motor generator or electric generator and said electric storage part (19, 216) to said electric loads (21, 23, 25, 221, 222, 228, 229) by computing an electric power suppliable from the motor generator or electric generator and computing an electric power suppliable from the electric storage part (19, 216); compute a total of electric power amounts requested by said electric loads (21, 23, 25, 221, 222, 228, 229); and compare said available electric power with said total of the electric power amounts, and, when said available electric power is smaller than said total of the electric power amounts, determine a distribution ratio of electric power amounts to be supplied to the respective electric loads (21, 23, 25, 221, 222, 228, 229) based on said priority to limit the electric power amounts supplied to said electric loads (21, 23, 25, 221, 222, 228, 229). an engine (11, 212); a motor generator or an electric generator connected to the engine; a plurality of electric loads (21, 23, 25, 221, 222, 228, 229); an electric storage part (19, 216) that supplies electric power to at least one of the motor generator and the electric loads (21, 23, 25, 221, 222, 228, 229); and a control part (30, 240) that controls said engine (11, 212), said motor generator or electric generator, said electric loads (21, 23, 25, 221, 222, 228, 229) and said electric storage part (19, 216), wherein the control part is configured to: set a priority to each of said electric loads (21, 23, 25); characterised in that the control part is further configured to: compute an available electric power suppliable from said motor generator or electric generator and said electric storage part (19, 216) to said electric loads (21, 23, 25, 221, 222, 228, 229) by computing an electric power suppliable from the motor generator or electric generator and computing an electric power suppliable from the electric storage part (19, 216); compute a total of electric power amounts requested by said electric loads (21, 23, 25, 221, 222, 228, 229); and compare said available electric power with said total of the electric power amounts, and, when said available electric power is smaller than said total of the electric power amounts, determine a distribution ratio of electric power amounts to be supplied to the respective electric loads (21, 23, 25, 221, 222, 228, 229) based on said priority to limit the electric power amounts supplied to said electric loads (21, 23, 25, 221, 222, 228, 229). compute an available electric power suppliable from said motor generator or electric generator and said electric storage part (19, 216) to said electric loads (21, 23, 25, 221, 222, 228, 229) by computing an electric power suppliable from the motor generator or electric generator and computing an electric power suppliable from the electric storage part (19, 216); compute a total of electric power amounts requested by said electric loads (21, 23, 25, 221, 222, 228, 229); and compare said available electric power with said total of the electric power amounts, and, when said available electric power is smaller than said total of the electric power amounts, determine a distribution ratio of electric power amounts to be supplied to the respective electric loads (21, 23, 25, 221, 222, 228, 229) based on said priority to limit the electric power amounts supplied to said electric loads (21, 23, 25, 221, 222, 228, 229).