A shovel assist system including a first shovel and an external device configured to communicate with the first shovel, the shovel assist system comprising: a first environmental information obtaining unit configured to obtain environmental information around the first shovel, the first environmental information obtaining unit being provided in the first shovel; a determining unit configured to perform determination related to an object around the first shovel based on the environmental information obtained by the first environmental information obtaining unit, by using a learned model on which machine learning has been performed, the determining unit being provided in the first shovel; a first recording unit configured to record the environmental information obtained by the first environmental information obtaining unit, the first recording unit being provided in the first shovel; a first environmental information transmission unit configured to transmit the environmental information recorded by the first recording unit to the external device, the first environmental information transmission unit being provided in the first shovel; a teaching information generating unit configured to generate teaching information based on the environmental information obtained at the first shovel, received from the first shovel, the teaching information generating unit being provided in the external device; a learning unit configured to perform additional learning on a learned model identical to the learned model used to perform the determination at the first shovel, based on the teaching information generated by the teaching information generating unit, to generate an additionally learned model, the learning unit being provided in the external device; and a model transmission unit configured to transmit, to the first shovel, the additionally learned model on which the additional learning has been performed by the learning unit, the model transmission unit being provided in the external device, wherein the learned model is updated to the additionally learned model received from the external device at the first shovel, and wherein the determining unit performs the determination, in a case where the learned model is updated, by using the updated learned model, based on the environmental information obtained by the first environmental information obtaining unit. a first environmental information obtaining unit configured to obtain environmental information around the first shovel, the first environmental information obtaining unit being provided in the first shovel; a determining unit configured to perform determination related to an object around the first shovel based on the environmental information obtained by the first environmental information obtaining unit, by using a learned model on which machine learning has been performed, the determining unit being provided in the first shovel; a first recording unit configured to record the environmental information obtained by the first environmental information obtaining unit, the first recording unit being provided in the first shovel; a first environmental information transmission unit configured to transmit the environmental information recorded by the first recording unit to the external device, the first environmental information transmission unit being provided in the first shovel; a teaching information generating unit configured to generate teaching information based on the environmental information obtained at the first shovel, received from the first shovel, the teaching information generating unit being provided in the external device; a learning unit configured to perform additional learning on a learned model identical to the learned model used to perform the determination at the first shovel, based on the teaching information generated by the teaching information generating unit, to generate an additionally learned model, the learning unit being provided in the external device; and a model transmission unit configured to transmit, to the first shovel, the additionally learned model on which the additional learning has been performed by the learning unit, the model transmission unit being provided in the external device, wherein the learned model is updated to the additionally learned model received from the external device at the first shovel, and wherein the determining unit performs the determination, in a case where the learned model is updated, by using the updated learned model, based on the environmental information obtained by the first environmental information obtaining unit.