The invention discloses a control apparatus for motor safe startup, belongs to the field of motor control, and solves the problem that the unsafe factors for the power supply cannot be avoided in the prior art by adopting a delay startup motor. The control apparatus comprises a power supply signal monitoring unit, circuit breakers QS1 and QS2, a three-phase fuse FR, an intermediate relay KA, a start button SB1, a stop button SB2 and an alternating current contactor KM1; a three-phase motor M is connected with a three-phase power supply through the FR, the KM1 normally-open main contact KM1-1 and the QS1 in sequence; two alternating current input ends of the power supply signal monitoring unit are connected with firing lines L1 and L3 respectively; the two direct current output ends of the power supply signal monitoring unit are connected with the two ends of the intermediate relay KA coils respectively; the SB2, the SB1, the KA normally-open contact KA-1, the KM1 coil and the FR auxiliary normally-closed contact are connected in series, and then connected between the firing lines L2 and L3 in parallel through the QS2; and the KM1 normally-open contacts KM1-2 are connected at the two ends of the start button SB1 in parallel.